gitignore: add rules for the PC/ directory (#1514)

[2.7] gitignore: add rules for the PC/ directory

.gitignore

@@ -30,6 +30,20 @@ Modules/Setup.config
 Modules/Setup.local
 Modules/config.c
 Modules/ld_so_aix
+PC/python_nt*.h
+PC/pythonnt_rc*.h
+PC/*/*.exe
+PC/*/*.exp
+PC/*/*.lib
+PC/*/*.bsc
+PC/*/*.dll
+PC/*/*.pdb
+PC/*/*.user
+PC/*/*.ncb
+PC/*/*.suo
+PC/*/Win32-temp-*
+PC/*/x64-temp-*
+PC/*/amd64
 PCbuild/*.bsc
 PCbuild/*.dll
 PCbuild/*.exe