Connections
Closes #8341
Required for #8376

Description
The CreateGraphicsPipelineState function works great for basic render pipelines, but for more advanced features such as mesh shaders (#8110) or multiview/view instancing (#8206), you must use a streaming descriptor. The streaming descriptor corresponds more or less to a vulkan pipeline descriptor with the state described in a pNext chain, allowing you to use all sorts of extensions.

This PR switches all pipeline creation to use this function. Mesh shaders already used it but there was no reason to use different code paths for mesh shader pipelines vs standard pipelines when 99% of the descriptor is the same.

One thing to note: if it is ever possible in some esoteric system to use the DX12 backend on a 32-bit system, this code might not function properly. It probably still would, but it might not. Not that this is a setup that any real person has of course.

Testing
Existing testing (pretty much all tests use render pipelines)

Squash or Rebase?

Squash

Checklist

• Run cargo fmt.
• Run taplo format.
• Run cargo clippy --tests. If applicable, add:
  • --target wasm32-unknown-unknown
• Run cargo xtask test to run tests.
• If this contains user-facing changes, add a CHANGELOG.md entry.