[EPIC]: Implement Mesh Shader Tests

[manon-traverse]

This issue exists to keep track of work going on around implementing mesh shaders.
Mesh Shader support requires a mix of adding new features to the framework as well as modifying existing functionality.
The list below is not an exhaustive list, more items are added as they are found to be needed. However, it should create some insight as to what work has been done for this feature and what work is going to happen in the near future for mesh shader support.

Legend:

• Not started yet
• In progress 🏗️
• In review 👀
• Finished (merged in main)

Framework Modfications/Features

• Pipeline creation 🏗️
  • Abstract pipeline creation functions Abstract Pipeline creation (including pipeline layouts and root signatures) #1070
  • Create mesh shader pipeline with Mesh Shader and Pixel Shader 🏗️
  • Create mesh shader pipeline with Amplification Shader.
• Mesh Shader support in .test files 🏗️
  • Add robust validation for various pipeline types (compute vs traditional raster vs mesh shader raster). Improve validation of shader pipeline type. #1148
  • Rework dispatch parameters to be extendable to other pipeline types Move DispatchSize out of the Shader struct, add support for specifying VertexCount #1152 Move dispatch dimensions and vertex count to new DispatchParameters with defaults #1153 👀
  • Make vertex buffers optional in rasterization test (mesh shaders don't use vertex buffers) Make specifying a vertex buffer optional #1154 Make vertex buffers optional in the TraditionalRaster pipeline and add VerticesFromVertexID.test #1155 👀
  • Add all the enums and yaml parsing for Mesh Shaders Add support to .test files for specifying Mesh Shader tests #1161 🏗️
• Add dispatching mesh shader on abstract command buffer and command encoder. 🏗️
  • Introduce a Render(Pass)CommandEncoder for recording rasterization commands Introduce a Render(Pass)CommandEncoder for recording rasterization commands #1160 🏗️
  • Add a method for dispatching a mesh shader

Tests

• Triangle from Vertex IDs Test
• Triangle from buffer containing vertices
• Amplification Shader test