Add C# editor

Author: z-song

README.md

@@ -42,6 +42,8 @@ $form->clang('code');
 
 $form->cpp('code');
 
+$form->csharp('code');
+
 $form->java('code');
 
 $form->objectivec('code');

src/ClikeEditorServiceProvider.php

@@ -20,6 +20,7 @@ public function boot()
         Admin::booting(function () {
             Form::extend('clang', Clang::class);
             Form::extend('cpp', Cpp::class);
+            Form::extend('csharp', Csharp::class);
             Form::extend('java', Java::class);
             Form::extend('objectivec', Objectivec::class);
             Form::extend('scala', Scala::class);

src/Csharp.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Encore\ClikeEditor;
+
+class Csharp extends Editor
+{
+    protected $mode = 'text/x-csharp';
+}