Merge pull request #2871 from cwize1/AddArmToVisualStudio

Add `ARM` and `ARM64` to Visual Studio's ignore file.

VisualStudio.gitignore

@@ -20,6 +20,8 @@
 [Rr]eleases/
 x64/
 x86/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
 bld/
 [Bb]in/
 [Oo]bj/