[ENH] Erlang Distribution

[RUPESH-KUMAR01]

Reference Issues/PRs

Implementing a distribution towards #22

What does this implement/fix? Explain your changes.

Implements Erlang Distribution

Does your contribution introduce a new dependency? If yes, which one?

No

What should a reviewer concentrate their feedback on?

Sorry for the issue on Previous PR #517 .

PR checklist

For all contributions

• I've added myself to the list of contributors with any new badges I've earned :-)
  How to: add yourself to the all-contributors file in the skpro root directory (not the CONTRIBUTORS.md). Common badges: code - fixing a bug, or adding code logic. doc - writing or improving documentation or docstrings. bug - reporting or diagnosing a bug (get this plus code if you also fixed the bug in the PR).maintenance - CI, test framework, release.
  See here for full badge reference
• The PR title starts with either [ENH], [MNT], [DOC], or [BUG]. [BUG] - bugfix, [MNT] - CI, test framework, [ENH] - adding or improving code, [DOC] - writing or improving documentation or docstrings.

For new estimators

• I've added the estimator to the API reference - in docs/source/api_reference/taskname.rst, follow the pattern.
• I've added one or more illustrative usage examples to the docstring, in a pydocstyle compliant Examples section.
• If the estimator relies on a soft dependency, I've set the python_dependencies tag and ensured
  dependency isolation, see the estimator dependencies guide.

[fkiraly]

Sorry for the issue on Previous PR #517 .

No problem - I did not think there was a major issue - if you post in dev-chat, we could have surely figured it out.

[fkiraly]

For failing code quality checks:
https://www.sktime.net/en/stable/developer_guide/coding_standards.html

[fkiraly]

Found the issue - shape was a reserved parameter.

I added some info in the extension template to avoid this issue in the future: #521