Added SegmentedPool

UnmangedMMU/Allocators/IUnmanagedAllocator.cs

@@ -0,0 +1,23 @@
+namespace UnmanagedMMU.Allocators
+{
+    /// <summary>
+    /// Interface that defines an Unmanaged allocator
+    /// </summary>
+    internal unsafe interface IUnmanagedAllocator
+    {
+        /// <summary>
+        /// Allocates an unmanaged memory block of the specified size.
+        /// </summary>
+        /// <param name="size">The number of bytes to allocate.</param>
+        /// <returns>
+        /// A pointer to the beginning of the allocated memory block,.
+        /// </returns>
+        void* Alloc(nuint size);
+
+        /// <summary>
+        /// Frees a previously allocated unmanaged memory block.
+        /// </summary>
+        /// <param name="ptr">A pointer to the beginning of the memory block to free.</param>
+        void Free(void* ptr);
+    }
+}