AP_Scripting: added GPS yaw binding

useful for seeing if switching to a GPS yaw source set in EK3 will work

libraries/AP_Scripting/docs/docs.lua

@@ -2819,6 +2819,13 @@ gps.GPS_OK_FIX_2D = enum_integer
 gps.NO_FIX = enum_integer
 gps.NO_GPS = enum_integer
 
+-- get yaw from GPS in degrees
+---@param instance integer -- instance number
+---@return number|nil -- yaw in degrees
+---@return number|nil -- yaw accuracy in degrees
+---@return uint32_t_ud|nil -- time in milliseconds of last yaw reading
+function gps:gps_yaw_deg(instance) end
+
 --  Returns nil or the instance number of the first GPS that has not been fully configured. If all GPS’s have been configured this returns nil.
 ---@return integer|nil
 function gps:first_unconfigured_gps() end

libraries/AP_Scripting/generator/description/bindings.desc

@@ -134,6 +134,7 @@ singleton AP_GPS method last_message_time_ms uint32_t uint8_t 0 ud->num_sensors(
 singleton AP_GPS method have_vertical_velocity boolean uint8_t 0 ud->num_sensors()
 singleton AP_GPS method get_antenna_offset Vector3f uint8_t 0 ud->num_sensors()
 singleton AP_GPS method first_unconfigured_gps boolean uint8_t'Null
+singleton AP_GPS method gps_yaw_deg boolean uint8_t 0 ud->num_sensors() float'Null float'Null uint32_t'Null
 
 include AP_Math/AP_Math.h