Memory: create MemorySystem class

src/core/memory.h

@@ -254,4 +254,8 @@ void RasterizerFlushVirtualRegion(VAddr start, u32 size, FlushMode mode);
 /// Gets offset in FCRAM from a pointer inside FCRAM range
 u32 GetFCRAMOffset(u8* pointer);
 
+class MemorySystem {
+
+};
+
 } // namespace Memory