add release please configuration

[Vincent Biret]

reflection of microsoftgraph/msgraph-beta-sdk-java#940 on this repository. We want:

• release please header file (yaml .github/release-please.yml)
• release please manifest (json .release-please-manifest.json)
• release please config (json release-please-config.json)
• release please workflow to trigger on main branch (.github/workflows/release-please.yml)
• install the release please GitHub app to the repository
• changelog keep a changelog header and unreleased information to be removed
• contributing to be updated with commit formatting instructions
• version bump script to be deleted (and removed from the weekly generation process)
• files where the version needs to be updated to be ammended with the special comments for release please