Release flow

[jaenrig-ifx]

By creating this pull request you agree to the terms in CONTRIBUTING.md.
https://github.com/Infineon/.github/blob/master/CONTRIBUTING.md
--- DO NOT DELETE ANYTHING ABOVE THIS LINE ---

CONTRIBUTING.md also tells you what to expect in the PR process.

The release script is now refactored for reusability across cores.
The functionality is split in 3 main classes:

• RelelaseConfig-> Handles the core specific parameters
• CorePackage-> Handles the generation of the .zip file with all the necessary sources
• PackageIndex-> Handles the generation of the package index JSON manifest used to install 3rd party cores.

Additionally the PackageVersion supports release versioning and ensures consistency with core metafiles versioning.

With all of them the main function build_release_assets which given a config.yml file and the Arduino core repository will create the core source .zip archive and the JSON package index.
An example of the config.yml file -> https://github.com/Infineon/arduino-core-psoc/blob/reuse-ext-workflow/package/config.yml

And finally, a class PackageParser implement a CLI tool to pass the necessary arguments to the packager.

The CI/CD release support is provided in the .github/workflows/release.py.
Here is also an example of how we can reuse the workflow in the arduino-core-psoc:
https://github.com/Infineon/arduino-core-psoc/blob/reuse-ext-workflow/.github/workflows/release.yml

Some improvements already that can be considered:

• The config.yml params could be automatically extracted from the repo itself by default. That could make make the config.yml optional.

[LinjingZhang]

Looks nice!
I didn't look at the details of the code too much, should be ok if it worked in psoc-arduino-core without any problems. 2 small questions

1. Can you put some of the descriptions in the PR into the readme for easy reading and understanding?
2. is it possible to release in fork?

[jaenrig-ifx]

Looks nice! I didn't look at the details of the code too much, should be ok if it worked in psoc-arduino-core without any problems. 2 small questions

1. Can you put some of the descriptions in the PR into the readme for easy reading and understanding?
2. is it possible to release in fork?

1. Yep, the documentation is missing. And it should be more user oriented. There is an extra task for this.
2. You can release from a fork with the proper config.

[ramya-subramanyam]

Nice 👍