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/NadekoRandom.cs

@@ -6,7 +6,8 @@ public class NadekoRandom : Random
 {
     private readonly RandomNumberGenerator _rng;
 
-    public NadekoRandom() : base()
+    public NadekoRandom()
+        : base()
         => _rng = RandomNumberGenerator.Create();
 
     public override int Next()