Update to latest bgfx/bx/bimg

[SergioRZMasson]

Updated to latest version of bgfx/bx/bimg. This must wait for bgfx.cmake PR to be merged.

[Copilot]

Pull request overview

Updates the project’s bgfx/bx/bimg integration to align with newer upstream changes, including build-system adjustments and shader/callback compatibility updates.

Changes:

• Update Direct3D embedded shader naming from *_dx11 to *_dxbc (CMake shader generation + checked-in shader headers).
• Extend D3D11 external texture format table to match new bgfx TextureFormat entries.
• Align BgfxCallback::screenShot signature with the updated bgfx callback interface and adjust dependency build flags/definitions.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Polyfills/Canvas/shaderc.cmake	Updates shaderc BIN2C symbol suffix for D3D to dxbc.
Polyfills/Canvas/Source/Shaders/dx11/vs_nanovg_fill.h	Renames embedded shader byte array symbol to *_dxbc.
Polyfills/Canvas/Source/Shaders/dx11/vs_fspass.h	Renames embedded shader byte array symbol to *_dxbc.
Polyfills/Canvas/Source/Shaders/dx11/fs_nanovg_fill.h	Renames embedded shader byte array symbol to *_dxbc.
Polyfills/Canvas/Source/Shaders/dx11/fs_gaussblur.h	Renames embedded shader byte array symbol to *_dxbc.
Polyfills/Canvas/Source/Shaders/dx11/fs_boxblur.h	Renames embedded shader byte array symbol to *_dxbc.
Plugins/ExternalTexture/Source/ExternalTexture_D3D11.cpp	Adds new format slots (EAC*) to keep the DXGI mapping table aligned with bgfx’s format enum count.
Dependencies/CMakeLists.txt	Adds new bgfx platform-support defines and MSVC bx compile options.
Core/Graphics/Source/BgfxCallback.cpp	Updates screenShot implementation signature to match bgfx.
Core/Graphics/InternalInclude/Babylon/Graphics/BgfxCallback.h	Updates screenShot override signature to match bgfx.
CMakeLists.txt	Changes the bgfx.cmake FetchContent repository and pinned commit.

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[Copilot]

Pull request overview

Copilot reviewed 14 out of 14 changed files in this pull request and generated 3 comments.

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