Merge bitcoindevkit/bdk-cli#137: Update the release cycle

4bb535e79d647ce9bce6e65763361a206942fa4e Update the release cycle (rajarshimaitra)

Pull request description:

  <!-- You can erase any parts of this template not applicable to your Pull Request. -->

  ### Description

  Follow the bdk main release process, expect making intermediate release candidate.
  Add other issue templates.
  Add Development_cycle notes.
  Update PR template to include changelog section.
  Update changelog to include instruction of new change log format.

  ### Notes to the reviewers
  Please re-check the `minor_release.md` file where I updated the release process without `rc` creation.
  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk-cli/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

ACKs for top commit:
  notmandatory:
    ACK 4bb535e79d647ce9bce6e65763361a206942fa4e

Tree-SHA512: 5532680364b2e102c4c615c6a08cbb09806c95fcfcf4b2063a855054e39bc4f1859d0601f439a567f51b6ad80102f9275e525c9545df1648570bf099cda10ecf