Improve shader sending method to GAL, use a memory interface instead of reading a fixed array size and sending every time

Ryujinx.Graphics/Gal/IGalMemory.cs

@@ -0,0 +1,7 @@
+namespace Ryujinx.Graphics.Gal
+{
+    public unsafe interface IGalMemory
+    {
+        int ReadInt32(long Position);
+    }
+}