Implements vkCreateSampler and vkDestroySampler APIs.
Also fixes maxSamplerLodBias value from 15.0f to 16.0f as it's the max supported by our hardware.
Also changing maxSamplerAnisotropy from 16.0f to 1.0f to temporarily disable anisotropy as we are missing software support for it.
Signed-off-by: Rajnesh Kanwal rajnesh.kanwal@imgtec.com