com.unity.microsoft.gdk.tools 1.5.1 Package Notes

Added a prebuild check to ensure GDK builds only target Intel 64-bit. Both Intel 32-bit and ARM 64-bit architectures are unsupported for GDK builds.
Added documentation on how to update Shell Visuals resource files for new language-locale pairs.
Added new "GDK Sideloaded Packages" window allowing see, run, teminate and remove packages installed via "Sideloadable Package" on GDK Settings.

Fixed pre/post build processors to skip execution on platforms that do not support GDK.
Selecting "Sideloadable package" on GDK Settings should attempt to sideload the package at build.

Refactored GDKPlatformManager to reduce boilerplate code and improve maintainability.
Improved code structure in pre-build and post-build processors with extracted validation methods.
Added comprehensive XML documentation to some public APIs.
Changed min supported Unity editor version to: 2022.3.
Documentation updates based on user feedback.
Game Config Schema updated for GDK 251000.
GetAssetPath(int instanceId) has been marked obsolete for newer editor streams.