Improvements to CS Console

* Errors are now logged properly.
* Can now define classes, methods, etc - no longer has to be an expression body.
* Added `StartCoroutine(IEnumerator routine)` helper method to easily run a Coroutine
* Disabling suggestions now properly stops Explorer trying to update suggestion cache instead of just not showing them. In the rare cases that suggestions cause a crash, disabling them will now prevent those crashes.
* Various other misc improvements behind the scenes

src/Core/Runtime/RuntimeProvider.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -36,6 +37,8 @@ namespace UnityExplorer.Core.Runtime
 
         public abstract void SetupEvents();
 
+        public abstract void StartConsoleCoroutine(IEnumerator routine);
+
         // Unity API handlers
 
         public abstract string LayerToName(int layer);