Add external texture tests

[bghgary]

No description provided.

[Copilot]

Pull request overview

This PR adds external texture tests to the BabylonNative codebase, introducing platform-specific test utilities for creating and destroying textures across Metal, D3D11, D3D12, and OpenGL backends.

Key changes include:

• Added comprehensive external texture tests with platform-specific texture creation utilities
• Fixed lambda capture semantics by adding mutable keyword where std::move is used in lambda bodies
• Refactored test infrastructure to support command-line arguments and consolidated test entry points
• Removed Android build artifacts and updated bgfx debug annotation configuration

Reviewed changes

Copilot reviewed 38 out of 40 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Apps/UnitTests/Source/Tests.ExternalTexture.cpp	New test file for external texture construction and async operations
Apps/UnitTests/Source/Utils*.cpp	Platform-specific texture creation/destruction utilities for D3D11, D3D12, Metal, and OpenGL
Apps/UnitTests/Source/App*.cpp	Refactored main entry points to accept argc/argv parameters
Apps/UnitTests/CMakeLists.txt	Updated to include external texture tests and platform-specific utilities
Plugins/ExternalTexture/Source/ExternalTexture_Shared.h	Fixed lambda captures by adding mutable keyword for move operations
Core/Graphics/Source/DeviceImpl_Metal.cpp	Refactored Metal device type usage to use proper Objective-C id syntax
Dependencies/CMakeLists.txt	Moved BGFX_CONFIG_DEBUG_ANNOTATION setting to compile definitions to fix D3D12 access violation
CMakeLists.txt	Updated JsRuntimeHost dependency git tag
Android/*	Removed entire Android build infrastructure

Files not reviewed (1)

• Apps/package-lock.json: Language not supported

Comments suppressed due to low confidence (1)

Apps/UnitTests/Source/App_X11.cpp:19

• Extra closing parenthesis in the function signature. The function should be declared as int main(int argc, char* argv[]) without the extra closing parenthesis.

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[bghgary]

Need to update Install/Test again.