Update dependency libraries to match Vulkan SDK 1.2.141.

Docs/Whats_New.md

@@ -38,6 +38,8 @@ Released 2020/06/01
 - Fix situation where compute pipeline state not retained across copy and renderpass operations.
 - Fix buffer offset calculation.
 - Fixes to maximum FPS calculations.
+- Fix buffer size passed to shaders when `VkDescriptorBufferInfo.range` set to `VK_WHOLE_SIZE`.
+- Support stencil only image formats in identity swizzle case.
 - Enables format atomic capabilities only when format supports it.
 - Add `MVKSmallVector` as a more memory efficient substitute of `MVKVector`.
 - Reinstate `VulkanSamples API-Samples` demo apps and add 
@@ -53,6 +55,7 @@ Released 2020/06/01
 	- Reduce thread locking on performance statistics collection.
 - Numerous documentation typo corrections.
 - Support Xcode 11.5.
+- Update dependency libraries to match *Vulkan SDK 1.2.141*.
 - Update to latest SPIRV-Cross version:
 	- MSL: mark `BuiltInFragCoord` as implicitly used for subpass reads.
 	- MSL: Deal with cases where builtin is implicitly needed, declared, but unused.

ExternalRevisions/Vulkan-Headers_repo_revision

@@ -1 +1 @@
-fb7f9c9bcd1d1544ea203a1f3d4253d0e90c5a90
+09531f27933bf04bffde9074acb302e026e8f181

ExternalRevisions/Vulkan-Tools_repo_revision

@@ -1 +1 @@
-7844b9b4e180612c7ca35bcb07ce7f86610b22c4
+e5b2ff8935cbe779fbbaa02d3aa7659167eb7e35

ExternalRevisions/VulkanSamples_repo_revision

@@ -1 +1 @@
-036541ca8f65333bf911b3957afa2c49f83fa0cd
+f938eb1daf5c2c9f895c70563760c35e074acc03

ExternalRevisions/glslang_repo_revision

@@ -1 +1 @@
-e157435c1e777aa1052f446dafed162b4a722e03
+e00d27c6d65b7d3e72506a311d7f053da4051295

MoltenVK/MoltenVK/GPUObjects/MVKDescriptor.mm

@@ -500,7 +500,7 @@ void MVKBufferDescriptor::bind(MVKCommandEncoder* cmdEncoder,
 				if (_buffRange == VK_WHOLE_SIZE)
 					bb.size = (uint32_t)(_mvkBuffer->getByteCount() - bb.offset);
 				else
-					bb.size = _buffRange;
+					bb.size = (uint32_t)_buffRange;
 			}
 			for (uint32_t i = kMVKShaderStageVertex; i < kMVKShaderStageMax; i++) {
 				if (stages[i]) {