Add object[] and StringBuilder as default pools

Author: austinv900

src/Pooling/CorePoolFactory.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Text;
 
 namespace Oxide.Pooling
 {
@@ -14,11 +15,13 @@ public CorePoolFactory()
         {
             registeredProviders = new Dictionary<Type, IPoolProvider>
             {
-                // [typeof(object[])] = new BaseArrayPoolProvider<object>(),
-                // [typeof(StringBuilder)] = new StringPoolProvider()
+                [typeof(object[])] = new BaseArrayPoolProvider<object>(256, 50),
+                [typeof(StringBuilder)] = new StringPoolProvider()
             };
         }
 
+        internal void Internal_RegisterProvider(Type type, IPoolProvider provider) => registeredProviders[type] = provider;
+
         public IPoolProvider<T> GetProvider<T>()
         {
             lock (registeredProviders)