Updated submodules

Hydrogent/USD viewer updates
Android updates
Build fixes

Author: TheMostDiligent

.github/workflows/build-windows.yml

@@ -58,14 +58,6 @@ jobs:
             cmake_args:      "-DDILIGENT_BUILD_CORE_TESTS=ON -DDILIGENT_BUILD_TOOLS_TESTS=ON -DDILIGENT_DEVELOPMENT=ON"
             build_args:      "-- -restore"
 
-          - name:            "Win8.1"
-            platform:        "Win32"
-            toolset:         "x64"
-            build_type:      "Release"
-            cmake_generator: "Visual Studio 17 2022"
-            cmake_args:      "-DDILIGENT_BUILD_CORE_TESTS=ON -DDILIGENT_BUILD_TOOLS_TESTS=ON -DCMAKE_SYSTEM_VERSION=8.1"
-            build_args:      "-- -restore"
-
           - name:            "Win10-Ninja"
             platform:        "Win32"
             toolset:         "x64"

DiligentCore

@@ -170,7 +170,8 @@ Build prerequisites:
 * Windows SDK 10.0.17763.0 or later (10.0.19041.0 is required for mesh shaders)
 * C++ build tools
 * Visual C++ ATL Support
-* .NET SDK
+
+.NET support requires .NET SDK 6.0 or later.
 
 Use either CMake GUI or command line tool to generate build files. For example, to generate 
 [Visual Studio 2022](https://visualstudio.microsoft.com/) 64-bit solution and project files in *build/Win64* folder, 
@@ -213,7 +214,7 @@ is automatically configured by CMake). Alternatively, you can navigate to the bu
 To generate build files for Universal Windows platform, you need to define the following two cmake variables:
 
 * `CMAKE_SYSTEM_NAME=WindowsStore`
-* `CMAKE_SYSTEM_VERSION=< Windows SDK Version >`
+* `CMAKE_SYSTEM_VERSION=< Windows Version >`
 
 For example, to generate Visual Studio 2019 64-bit solution and project files in *build/UWP64* folder, run the following command
 from the engine's root folder:
@@ -222,12 +223,6 @@ from the engine's root folder:
 cmake -D CMAKE_SYSTEM_NAME=WindowsStore -D CMAKE_SYSTEM_VERSION=10.0 -S . -B ./build/UWP64 -G "Visual Studio 17 2022" -A x64
 ```
 
-You can target specific SDK version by refining CMAKE_SYSTEM_VERSION, for instance:
-
-```
-cmake -D CMAKE_SYSTEM_NAME=WindowsStore -D CMAKE_SYSTEM_VERSION=10.0.17763.0 -S . -B ./build/UWP64 -G "Visual Studio 17 2022" -A x64
-```
-
 Set the desired project as startup project (by default, GLTF Viewer will be selected) and run it. 
 
 By default, applications will run in D3D12 mode. You can select D3D11 or D3D12 using the following command line options: