config: Register shader interpreter modes

rpcs3/Emu/system_config.h

@@ -101,6 +101,7 @@ struct cfg_root : cfg::node
 		cfg::_enum<video_aspect> aspect_ratio{ this, "Aspect ratio", video_aspect::_16_9 };
 		cfg::_enum<frame_limit_type> frame_limit{ this, "Frame limit", frame_limit_type::none, true };
 		cfg::_enum<msaa_level> antialiasing_level{ this, "MSAA", msaa_level::_auto };
+		cfg::_enum<shader_interpreter_mode> shader_interpreter_mode{ this, "Enable shader interpreter", shader_interpreter_mode::disabled };
 
 		cfg::_bool write_color_buffers{ this, "Write Color Buffers" };
 		cfg::_bool write_depth_buffer{ this, "Write Depth Buffer" };

rpcs3/Emu/system_config_types.h

@@ -179,3 +179,10 @@ enum np_psn_status
 	disabled,
 	fake,
 };
+
+enum class shader_interpreter_mode
+{
+	disabled,
+	enabled,
+	forced
+};