Add workflow for changelog

[Vincent056]

Description

Add two workflows, one workflow for checking if the PR description is being filled in properly, and the second workflow will parse the PR description, and commit the CHANGELOG.md file to the master branch once a PR is merged. We also added a PR template for this purpose.

Type of change

Only Select one of the change types

• [ ] Enhancements (Adds functionality)
• [ ] Fixes (Fixes an issue, please reference the issue)
• [x] Internal Changes (Documentation, Tests, etc.)
• [ ] Deprecations (Signals removal of a feature)
• [ ] Removals (Removes a feature)
• [ ] Security (Fixes a vulnerability)
• [ ] This change requires a documentation update (Release PR, etc.)

How Has This Been Tested?

• [ ] Unit Test
• [ ] E2E Test
• [ ] Manual Test
• [x] Not Applicable