Added and applied styles for private readonly fields, private fields to Extensions and Common folders.

- Some renamings and code cleanups
- Chained method calls, binary expressions and binary patterns will now break into newlines
- Type param constraints and base constructor calls will be on the new line

src/NadekoBot/Common/Helpers.cs

@@ -6,7 +6,7 @@ public static class Helpers
     {
         if (!Console.IsInputRedirected)
             Console.ReadKey();
-            
+
         Environment.Exit(exitCode);
     }
 }