Define proof of concept gool & phase 1 of development

[repi]

@khyperia @Jasper-Bekkers and I discussed in our first weekly meeting today about what should be the first phase of development of this and what is the goal with our proof of concept.

We said something like this:

• Get the initial basic Rust to SPIRV new compiler prototype up. This is what @khyperia has started on (let's file an issue on it)
• Convert a few of our own shaders to Rust Convert a few GLSL shaders to Rust #4
• Plug in the Rust compiled SPIRV shaders into our engine and verify it actually works
• Flesh out design documents covering the sub projects, design space and issues so we know the full scope of the project and what would be needed

Outcome: Either we are happy with the progress & direction and we make the project open source and continue into a next phase of full development to make this real and that we actively use, or we decide to shut down / push the project

Timeframe: 1-2 months

Does that sound about right @Jasper-Bekkers @khyperia, anything missing or that should phrase differently?

[repi]

Sounds like we are aligned around this, though likely need to specify and clarify a little bit more.

@Jasper-Bekkers could you convert this into markdown in a PR? I think this could be essentially just in our main README as a "Phase 1 - first goal" plan topic of what we are working twoards.

Maybe also have a larger tracking issue for phase 1 that links the individual issues and that we'll close when we have achived the first prototype overall?

[khyperia]

Phase 1 is pretty much complete at this point, so closing this.