Adds ISSUE_TEMPLATE forms

Closes #15

.github/ISSUE_TEMPLATE/bug_report.yaml

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+name: Bug report
+description: Create a report to help us improve
+title: '[Bug]: '
+labels: 'bug'
+assignees:
+  - ''
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Please report any issues you encounter using `topofileformats`.
+  - type: textarea
+    id: describe-the-bug
+    attributes:
+      label: Describe the bug
+      description: A clear and concise description of what the bug is and what may be causing it.
+    validations:
+      required: true
+  - type: textarea
+    id: copy-of-output
+    attributes:
+      label: Copy of the output
+      description: |
+        Please copy and paste the output from your terminal below. At a minimum this should include the bottom section showing where the error arose and the subsequent output. If there is no output and an image shows the problem please paste a URL to that image here. If able to include any images which demonstrate the problem please attach them using the paper clip in the menu above.
+    validations:
+      required: true
+  - type: textarea
+    id: to-reproduce
+    attributes:
+      label: To Reproduce
+      description: |
+        If it is possible to share the file (e.g. via cloud services) that caused the error that would greatly assist in reproducing and investigating the problem. In addition the _exact_ command used that failed should be pasted below.
+    validations:
+      required: false
+  - type: dropdown
+    id: version-topofileformats
+    attributes:
+      label: Topofileformats Version
+      description: What version of our software are you running? You can find this out using `pip show topofileformats`.
+      options:
+        - 0.1.0
+        - Git main branch
+      default: 3
+    validations:
+      required: true
+  - type: dropdown
+    id: version-python
+    attributes:
+      label: Python Version
+      description: |
+        What version of Python are you running? If unsure type `python --version`.
+      options:
+        - 3.8
+        - 3.9
+        - 3.10
+        - 3.11
+        - 3.12
+      default: 3
+    validations:
+      required: true
+  - type: dropdown
+    id: version-os
+    attributes:
+      label: Operating System
+      description: |
+        What Operating System are you running?
+      options:
+        - Windows
+        - MacOS Intel (pre-2021)
+        - MacOS M1/M2 (post-2021)
+        - GNU/Linux
+      default: 3
+    validations:
+      required: true
+  - type: textarea
+    id: version-dependencies
+    attributes:
+      label: Python Packages
+      description: |
+        If you are able to provide a list of your installed packages that may be useful. The best way to get this is to copy and paste the results of typing `pip freeze`.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/feature_request.yaml

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+name: Feature request
+description: Suggest an idea for this project
+title: '[feature] : '
+labels: 'enhancement'
+assignees:
+  - ''
+body:
+  - type: markdown
+    attributes:
+      value: |
+        We welcome suggestions on features and improvements that can be added to the project. If there is an image format that you regularly work with that we do not currently support feel free to request it. If you are able to contribute code to support loading of the file please make a Pull Request.
+  - type: textarea
+    id: problem-related
+    attributes:
+      label: Is your feature request related to a problem?
+      description: |
+        A clear and concise description of what the problem is. E.g. _I'm always frustrated when..._
+    validations:
+      required: false
+  - type: textarea
+    id: proposed-solution
+    attributes:
+      label: Describe the solution you would like.
+      description: |
+        A clear and concise description of what you want to happen.
+    validations:
+      required: true
+  - type: textarea
+    id: proposed-alternatives
+    attributes:
+      label: Describe the alternatives you have considered.
+      description: |
+        A clear and concise description of any alternative solutions or features you've considered.
+    validations:
+      required: false
+  - type: textarea
+    id: sample-image
+    attributes:
+      label: Sample Image
+      description: |
+        If there is an image or file format you are able to share to help with development of your feature request please attach it here (use the paper clip above any of the text boxes).
+    validations:
+      required: false
+  - type: textarea
+    id: additional-context
+    attributes:
+      label: Additional context
+      description: |
+        Add any other context or links to screenshots about the feature request here.
+    validations:
+      required: false