Installing global assemblies requires assembly caches to be initialized and
this is no longer the case after the PE conversion (builtin fusion no longer
loads if the dll is not present on disk).

The next patch changes msi to perform late initialization of the assembly
caches so that native fusion can be loaded once it's installed by .NET
installers. However, there's no guarantee that all necessary files and
registry keys are installed before the InstallFiles and PatchFiles actions
are executed. Therefore this patch moves the parts of these actions handling
global assemblies to InstallFinalize.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51345