re-add framebuffer tracking (#573)

parallel-rdp/interface.hpp

@@ -47,6 +47,7 @@ extern "C"
 	uint64_t rdp_process_commands();
 	void rdp_onscreen_message(const char *_message);
 	void rdp_new_processor(GFX_INFO _gfx_info);
+	void rdp_check_framebuffers(uint32_t address, uint32_t length);
 	size_t rdp_state_size();
 	void rdp_save_state(uint8_t *state);
 	void rdp_load_state(const uint8_t *state);