Misc cleanup (#708)

* Fix typos

* Remove unneeded using statements

* Enforce var style more

* Remove redundant qualifiers

* Fix some indentation

* Disable naming warnings on files with external enum names

* Fix build

* Mass find & replace for comments with no spacing

* Standardize todo capitalization and for/if spacing

Ryujinx.Graphics/Shader/ShaderHeader.cs

@@ -158,7 +158,7 @@ namespace Ryujinx.Graphics.Shader
                     }
                 }
 
-                //Depth register is always two registers after the last color output.
+                // Depth register is always two registers after the last color output.
                 return count + 1;
             }
         }