Shader validation: respect Vulkan version, relaxed layout requirement

Shader validation: respect Vulkan version, relaxed layout requirement

Pass more info to SPIR-V validation:
- Target Vulkan version
- Whether the test case requested relaxed layout

When a shader is built with VK_KHR_relaxed_block_layout, the SPIR-V
module does not record the setting.  But SPIR-V module validation
for Vulkan 1.0 must know if block layout should be relaxed.
Vulkan 1.1 includes VK_KHR_relaxed_block_layout in core.

Adds the necessary state to framework program build options objects to
pass those options to the SPIR-V validator.

Update SPIRV-Tools, SPIRV-Headers, Glslang to just befor NV Turing extensions.
Make sure we have the entry point:
  spvValidatorOptionsSetRelaxedBlockLayout

Change-Id: I74511629a4e56a4fea370ffe3a21677465a4510f
Component: Framework
VK-GL-CTS: 1266, 1270