TECS: add EAS_sp to tecs_status.msg and rename other airspeeds to TAS

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>

src/lib/tecs/TECS.hpp

@@ -144,6 +144,7 @@ public:
 	float hgt_rate_setpoint() { return _hgt_rate_setpoint; }
 	float vert_vel_state() { return _vert_vel_state; }
 
+	float get_EAS_setpoint() { return _EAS_setpoint; };
 	float TAS_rate_setpoint() { return _TAS_rate_setpoint; }
 	float speed_derivative() { return _speed_derivative; }