[HLSL][SPIR] Add `Texture*` and `RWTexture*` types to the SPIR-V backend

[s-perron]

We will need to update clang to emit the correct target type.

• Emit target type for texture resources.
• Emit target type for sampler resources.

The main work in the backend is to expand the builtins used to access the resources. I do not have a list of the functions yet.

• Expand the intrinsics used to access the textures.
• Resubmit the tests removed in [SPIRV] Expand RWBuffer load and store from HLSL #122355 that relate to textures. We need the intrinsics to access the textures to enble thoses tests.