Add pooling providers [skip ci]

Author: austinv900

src/Pooling/IArrayPoolProvider.cs

@@ -0,0 +1,14 @@
+namespace Oxide.Pooling
+{
+    /// <inheritdoc cref="IPoolProvider"/>
+    /// <typeparam name="T">The item type this pool manages</typeparam>
+    public interface IArrayPoolProvider<out T> : IPoolProvider<T[]>
+    {
+        /// <summary>
+        /// Takes a single <see cref="T"/> array from this pool
+        /// </summary>
+        /// <param name="length"></param>
+        /// <returns><see cref="T"/>[]</returns>
+        T[] Take(int length);
+    }
+}

src/Pooling/IPoolFactory.cs

@@ -0,0 +1,33 @@
+using System;
+
+namespace Oxide.Pooling
+{
+    /// <summary>
+    /// A factory interface used for managing registered <see cref="IPoolProvider"/>'s
+    /// </summary>
+    public interface IPoolFactory
+    {
+        /// <summary>
+        /// Get the pooling provider for a specific type
+        /// </summary>
+        /// <typeparam name="T">The handled type</typeparam>
+        /// <returns>The <see cref="IPoolProvider"/> that handles the requested type</returns>
+        IPoolProvider<T> GetProvider<T>();
+
+        /// <summary>
+        /// Check if this factory has registered <see cref="IPoolProvider"/> for a type
+        /// </summary>
+        /// <typeparam name="T">The type to check for</typeparam>
+        /// <returns>Will return true if a <see cref="IPoolProvider"/> is registered</returns>
+        bool IsHandledType<T>();
+
+        /// <summary>
+        /// Registers a <see cref="IPoolProvider"/> with this factory
+        /// </summary>
+        /// <param name="provider">The created provider</param>
+        /// <param name="args">Additional parameters used to instantiate the <see cref="IPoolProvider"/></param>
+        /// <typeparam name="TProvider">The <see cref="IPoolProvider"/></typeparam>
+        /// <returns>A disposable object that will unregister the <see cref="IPoolProvider"/> when disposed</returns>
+        IDisposable RegisterProvider<TProvider>(out TProvider provider, params object[] args) where TProvider : IPoolProvider;
+    }
+}

src/Pooling/IPoolProvider.cs

@@ -0,0 +1,25 @@
+namespace Oxide.Pooling
+{
+    /// <summary>
+    /// A interface used for managing pooled items
+    /// </summary>
+    public interface IPoolProvider
+    {
+        /// <summary>
+        /// Returns a item to the pool
+        /// </summary>
+        /// <param name="item">The item to return</param>
+        void Return(object item);
+    }
+
+    /// <inheritdoc cref="IPoolProvider"/>
+    /// <typeparam name="T">The item type this pool manages</typeparam>
+    public interface IPoolProvider<out T> : IPoolProvider
+    {
+        /// <summary>
+        /// Takes a single <see cref="T"/> from this pool
+        /// </summary>
+        /// <returns><see cref="T"/></returns>
+        T Take();
+    }
+}