Add G923, G29, and G920 shifter aliases

There seem to be a number of users confused about what the "Driving Force" shifter is. These aliases cover users who are using the shifter that came with their wheel and know their wheel model only.

Author: dmadison

src/SimRacing.h

@@ -915,6 +915,30 @@ namespace SimRacing {
 		DeviceConnection detectObj;  ///< detector instance for checking if the shifter is connected
 	};
 
+	/**
+	* @brief Interface with the Logitech G923 shifter
+	* @ingroup Shifters
+	*
+	* @see https://www.logitechg.com/en-us/products/driving/g923-trueforce-sim-racing-wheel.html
+	*/
+	using LogitechShifterG923 = LogitechShifter;
+
+	/**
+	* @brief Interface with the Logitech G29 shifter
+	* @ingroup Shifters
+	*
+	* @see https://en.wikipedia.org/wiki/Logitech_G29
+	*/
+	using LogitechShifterG29 = LogitechShifter;
+
+	/**
+	* @brief Interface with the Logitech G920 shifter
+	* @ingroup Shifters
+	*
+	* @see https://en.wikipedia.org/wiki/Logitech_G29
+	*/
+	using LogitechShifterG920 = LogitechShifter;
+
 	/**
 	* @brief Interface with the Logitech G27 shifter
 	* @ingroup Shifters