feat: Generate JSON schemas from Python data models [TECHART-244]

.docstr.yaml

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+paths: # list or string
+  - src/readyplayerme
+#badge: docs # Path to save SVG file
+exclude: .*/tests # regex
+verbose: 3 # int (0-4)
+skip_magic: True # Boolean
+skip_file_doc: True # Boolean
+skip_init: True # Boolean
+skip_class_def: False # Boolean
+skip_private: True # Boolean
+follow_links: True # Boolean
+accept_empty: True # Boolean
+ignore_names_file: .*/tests # regex
+fail_under: 25 # int
+percentage_only: False # Boolean
+ignore_patterns: # Dict with key/value pairs of file-pattern/node-pattern
+  .*:
+    - process

.github/CODEOWNERS

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+# These owners will be the default owners for everything in
+# the repo. Unless a later match takes precedence,
+# @Olaf-Wolf3D will be requested for review when someone opens a pull request.
+*       @Olaf-Wolf3D @TechyDaniel

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: 'bug'
+assignees: ''
+
+---
+
+**Which plugin**  
+If the bug relates to a pyblish plugin, write which one.
+
+**Describe the bug**  
+A clear and concise description of what the bug is.
+
+**Reproduction rate**  
+percentage of how often it happens, always or sometimes?
+
+**Reproduction steps**  
+describe the steps to reproduce the behavior, step 1. 2. 3. ..
+
+**Expected behavior**  
+A clear and concise description of what you expected to happen.
+
+**Screenshots**  
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+
+- OS: [e.g. Windows]
+- Version [e.g. 11]
+
+**Blender (please complete the following information):**
+
+- Version: [e.g. 3.3 LTS]
+- Installation type: [e.g. installer, portable, blender launcher, steam, windows store]
+
+**Additional context**  
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to an existing Ready Player Me pyblish plugin?**  
+Mention plugin here.
+
+**Is your feature request related to a problem? Please describe.**  
+A clear and concise description of what the problem is.
+
+**Describe the solution you'd like**  
+A clear and concise description of what you want to happen. Ideally, use Gherkin syntax.
+Example:
+
+```Gherkin
+Feature: Action to make all materials single-sided
+  Let users quickly make _all_ materials single-sided, regardless of validation state.
+
+  Rule: Make all materials single-sided
+    Background:
+      Given I have materials
+
+    Example: two-sided materials
+      Given I have run the validation
+      And at least one of the materials is two-sided
+      When I choose the single-sided materials action in the validator
+      Then all materials are single-sided
+
+    Example: one-sided materials
+      Given I have run the validation
+      And there are no two-sided materials
+      Then I still have the option to make all materials one-sided
+  ...
+```
+
+**Describe the impact**  
+Gauge how much __impact__ this feature would have for its users [e.g. how much time it will save].
+What is its value?
+
+**Describe alternatives you've considered**  
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**  
+Add any other context or screenshots about the feature request here.

.github/pull_request_template.md

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+# Description
+
+Please include a summary of the changes and the related issue.
+Please also include relevant motivation and context.
+List any dependencies that are required for this change.
+
+Fixes # (issue)
+
+## Type of change
+
+Please delete options that are not relevant.
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] This change requires a documentation update
+
+# How Has This Been Tested?
+
+Please describe the tests that you ran to verify your changes.
+Provide instructions so we can reproduce.
+Please also list any relevant details for your test configuration.
+
+- [ ] Test A
+- [ ] Test B
+
+**Test Configuration**:
+* Blender version:
+* Installation type [Ex. portable, installation, Steam, Windows store]:
+
+# Checklist:
+
+- [ ] I confirm that the changes meet the user experience and goals outlined in the design plan (if there is one).
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] I have updated any version info, if necessary.
+- [ ] My changes generate no new warnings
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] New and existing unit tests pass locally with my changes

.github/workflows/test.yml

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+name: test
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+    types: [ready_for_review, reopened]
+
+concurrency:
+  group: test-${{ github.head_ref }}
+  cancel-in-progress: true
+
+env:
+  PYTHONUNBUFFERED: "1"
+  FORCE_COLOR: "1"
+
+jobs:
+  run:
+    name: Python ${{ matrix.python-version }} on ${{ startsWith(matrix.os, 'macos-') && 'macOS' || startsWith(matrix.os, 'windows-') && 'Windows' || 'Linux' }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        python-version: ['3.10']
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install Hatch
+      run: pip install --upgrade hatch
+
+    - name: Run tests
+      run: hatch run cov
+
+    - name: Run linting
+      run: hatch run lint:all