Add extensions and update SPIRV_Cross.

• Add support for extensions:
  • VK_KHR_maintenance1;
  • VK_KHR_shader_draw_parameters;
  • VK_KHR_get_physical_device_properties2;
  • VK_KHR_push_descriptor;
• Add ability to track and access supported and enabled extensions.
• Update to latest SPIRV-Cross version.

vkCmdFullBuffer() & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT fixes.

• vkCmdFullBuffer() fills buffer using compute shader.
• Fix API for updating MVKDeviceConfiguration::synchronousQueueSubmits.
• vkGetPhysicalDeviceFormatProperties() return VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT
  if supported, even if other format properties are not.
• Support Metal GPU capture scopes.
• Update to latest SPIRV-Cross, glslang & SPIRV-Tools.

Updates for CTS testing & SDK 1.1.82.

Merge pull request #210 from karl-lunarg/sdk82

build: Update to get Vulkan 1.1.82 headers

Fixes to reported workgroup sizes, and attachment and image clearing to pass CTS tests.

Merge pull request #200 from billhollings/master

Report correct workgroup sizes from MTLDevice.

Fixes for cube maps, texture arrays, buffer views, depth/stencil clearing, workgroup sizes, IOSurfaces, and Retina.

Fixes to cube maps and texture arrays. Fix depth & stencil clearing. SDK 1.1.77 support. Larger buffer views. Improve crispness on Retina screens. Fix compute shader workgroup sizes. Cleanup iOS IOSurface support.

Device memory management changes

Merge pull request #173 from billhollings/master

Device memory management changes.

Sync, threading, and format fixes.

Merge pull request #166 from billhollings/master

vkGetPhysicalDeviceImageFormatProperties returns VK_ERROR_FORMAT_NOT_SUPPORTED.

Allow queue processing to be optionally handled on the submitting (render) thread.

Merge pull request #159 from billhollings/master

Allow queue processing to be optionally handled on the submitting (re…

Add features to support Vulkan CTS and update to latest SPIRV-Cross.

Merge pull request #149 from billhollings/master

Add features to support Vulkan CTS.

Vulkan SDK v1.1.73.0

This is the MoltenVK version that appears in the LunarG Vulkan SDK v1.1.73.0.