Adjust naming conventions and general refactoring in HLE Project (#490)

* Rename enum fields

* Naming conventions

* Remove unneeded ".this"

* Remove unneeded semicolons

* Remove unused Usings

* Don't use var

* Remove unneeded enum underlying types

* Explicitly label class visibility

* Remove unneeded @ prefixes

* Remove unneeded commas

* Remove unneeded if expressions

* Method doesn't use unsafe code

* Remove unneeded casts

* Initialized objects don't need an empty constructor

* Remove settings from DotSettings

* Revert "Explicitly label class visibility"

This reverts commit ad5eb5787c.

* Small changes

* Revert external enum renaming

* Changes from feedback

* Remove unneeded property setters

Ryujinx.HLE/HOS/ErrorCode.cs

@@ -2,9 +2,9 @@ namespace Ryujinx.HLE.HOS
 {
     static class ErrorCode
     {
-        public static uint MakeError(ErrorModule Module, int Code)
+        public static uint MakeError(ErrorModule module, int code)
         {
-            return (uint)Module | ((uint)Code << 9);
+            return (uint)module | ((uint)code << 9);
         }
     }
 }