[xbuild] Install data files for xbuild 12
[xbuild] Make xbuild script point to xbuild 12
[xbuild] Update printed version/copyright
[xbuild] MSBuild 12 toolset should be available for XBUILD_12
[xbuild] Fix 12.0 tasks
[xbuild] Fix 12.0 toolset location and public API
[xbuild] Set correct DefaultToolsVersion for xbuild 12
[xbuild] Remove Silverlight targets, they don't work w/o framework
[xbuild] Add binding redirects so old tasks work w/ new xbuild
[xbuild] Fix the xbuild 12 tests
[xbuild] Add pkgconfig file for xbuild 12
[xbuild] Suppress new window for child processes

BXC14584 - Console windows pop up during build with mono runtime
[jit] Fix some checks in the arm dyn call code. Fixes #17101.
[jit] Align the stack in mono_arch_restore_context () on x86 since it might be unaligned if it was captured asynchronously.
[jit] Use the mono_restore_context () helper function in one place.
Using the fully qualified assembly name in dependencies

Some assemblies fail to load without specifying the full name,
namely bundling an app that uses GTK
[mcs] Suport recursive references of non-FX assemblies
[io-layer] Correctly implement permission checking for File.Move. Fixes #17009.

The old check was simply for open sharing status, which is incorrect. The right
thing to do is to check for FileShare.Delete and not FileAccess.
[corlib] Add an exhaustive regression test for file sharing and File.Move.
[dlr] Better FEATURE_REFEMIT checks