Experiment: use hatch for builds, conda and rez packaging

[antirotor]

Changelog Description

This is experimental exploration of what it would take to standardize build process using hatch. The ultimate end goal would be to create wheels, conda and rez packages from the launcher that could make easier AYON deployment especially in automated environments, like render farm, CI/CD, etc. Having exposed dependencies can also help with rez integration down the line,

Current status

Currently, it can build using hatch, but that's it. The shim part isn't handled well and also the dependencies are not defined properly, although you get conda recipe and rudimentary rez package.

Usage:

There are more commands added to the manage helper scripts:
package-conda, package-rez and package-builds (create both conda and rez)

You can directly use hatch command - uv run hatch build

Note

The targets now are not configured properly. Ideally, there would be target for executable, wheel, conda and rez package. Right now, if you use just hatch build it will build the wheels only and that is not very useful.