Switch coreclr corelib to use resx (dotnet/coreclr#10268)

Switch coreclr corelib to use resx (dotnet/coreclr#10268)

* Switch to resx

* Use roslyn rewriter to switch from GetResourceString to SR

* More GetResourceString changes

* Add missing resource

* Remove Environment.GetResourceString and replace final usages with SR

* Remove comment

* Fix spacing

* Replace final instances of Environment.GetResourceString

* Add another missing resource

* Add back Environment.GetResourceStringLocal because the runtime needs it

Commit migrated from https://github.com/dotnet/coreclr/commit/12ef04c22b07f1e4ec5a63009298e4537a2c8e1a