Clear CPU side data on GPU buffer clears (#4125)

* Clear CPU side data on GPU buffer clears

* Implement tracked fill operation that can signal other resource types except buffer

* Fix tests, add missing XML doc

* PR feedback

Ryujinx.Graphics.Gpu/Memory/ResourceKind.cs

@@ -0,0 +1,13 @@
+namespace Ryujinx.Graphics.Gpu.Memory
+{
+    /// <summary>
+    /// Kind of a GPU resource.
+    /// </summary>
+    enum ResourceKind
+    {
+        None,
+        Buffer,
+        Texture,
+        Pool
+    }
+}