Move Shotgun Toolkit hooks into it's own repository

[j0yu]

Contribute our in-house, updated Shotgun rez_app_launch hook designed for tk-config-default2.

Changes made by:

• @Liametc
• @j0yu

Google Groups discussion: https://groups.google.com/forum/#!topic/rez-config/BSRuFNxBAkk

See Also

Original PR 823 and Issue 822 from official Rez repository Files at last commit of the PR: 2be03b01

To Do After initial release

• See #2 Auto changelog and release notes
  • Test https://pypi.org/project/changelog-cli/ using in Docker python image
• Build sphinx docs for the hooks only See #3

  • Test GitHub actions for setting up gh-pages

This hook is executed to launch applications, potentially in a Rez context.

It is NOT official/supported by Shotgun Software, but by third-party contributors

Please note that this requires Rez to be installed as a package, i.e. able to rez env rez, which exposes the Rez Python API.

With a proper Rez installation, you can do this by running rez-bind rez.

To keep a copy of the original rez_app_launch.py, there are 2 variants available:

• tk-config-default2 is the latest pipeline configuration style

  • Currently supported by Shotgun Software
  • Will be targeting this going forward for rez_app_launch.py

• tk-config-default is the legacy pipeline configuration style

  • Less supported by Shotgun Software
  • The original rez_app_launch.py, only updated to keep it functional

As of writing, the 2 rez_app_launch.py was tested at WWFX UK using rez 2.28.0. Newer rez versions may be tested in the future.