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/NadekoBot.csproj

@@ -8,7 +8,6 @@
     <RunWorkingDirectory>$(MSBuildProjectDirectory)</RunWorkingDirectory>
     <OutputType>exe</OutputType>
     <ApplicationIcon>nadeko_icon.ico</ApplicationIcon>
-    <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
   </PropertyGroup>
   
   <ItemGroup>