Add Unreal Engine 5.8 support for Windows and Linux

[MarinaGloc]

Summary

Adds Unreal Engine 5.8 support on Windows and Linux while preserving compatibility with UE 5.2 and UE 5.7.

Changes

• Added explicit compatibility macros for UE 5.8.
• Added a shared UE_IS_5_7_OR_5_8 compatibility path.
• Updated camera, logging, GPU LiDAR, Depth LiDAR, and LiDAR intensity code for UE 5.8.
• Added MSVC 14.44 selection for UE 5.8 on Windows.
• Updated Windows project-generation scripts to use Unreal Engine's bundled .NET runtime.
• Improved error handling when UnrealBuildTool fails or expected files are missing.
• Updated the Linux VS Code generation script for UE 5.8 behavior.
• Added safer path handling and UE_ROOT validation on Linux.
• Updated the documentation with UE 5.8 setup instructions.

Validation

• Successfully generated VS Code project files with UE 5.8.
• Confirmed the use of UE 5.8's bundled .NET 10 runtime.
• Compiled the UE 5.8 camera, logging, renderer, and LiDAR compatibility code.
• Validated the Linux script syntax.
• Ran git diff --check successfully.

Notes

UE 5.8 currently uses the same modern compatibility path as UE 5.7. Separate exact-version macros remain available so UE 5.8-specific behavior can be introduced later if required.