Linguist tweaks
Linguist tweaks

* Include MSBuild files in repo stats (it's a bunch of our code!)
* Exclude Arcade code from repo stats (we don't use CMake!)
* Mark XLF files as generated (collapse them by default in PRs)

mono/msbuild,AndyGerlicher/msbuild,cdmihai/msbuild,AndyGerlicher/msbuild,cdmihai/msbuild,chipitsine/msbuild,mono/msbuild,chipitsine/msbuild,mono/msbuild,cdmihai/msbuild,rainersigwald/msbuild,jeffkl/msbuild,chipitsine/msbuild,chipitsine/msbuild,sean-gilliam/msbuild,rainersigwald/msbuild,jeffkl/msbuild,jeffkl/msbuild,rainersigwald/msbuild,jeffkl/msbuild,sean-gilliam/msbuild,sean-gilliam/msbuild,AndyGerlicher/msbuild,mono/msbuild,rainersigwald/msbuild,AndyGerlicher/msbuild,cdmihai/msbuild,sean-gilliam/msbuild