[Samplers] Patch: Simplify + Optimize Sampler Management

[thr3343]

Simplifies sampler management by using the special hardware constant VK_LOD_CLAMP_NONE

VK_LOD_CLAMP_NONE permits the sampler to use all available miplevels on the texture, allowing one Sampler to handle all possible mipmap levels, with the additional effect of removing the need to track maxLods for each respective sampler.

Potentially may give a slight performance improvement on some hardware as a result of the reduced sampler count