AP_Airspeed move into AP_Vehicle

[hendjoshsr71]

This moves AP_Airspeed into AP_Vehicle as a basis for next adding airspeed into copter in this PR #18813

I could use a little help with the #ifdefs as I couldn't figure out a way to get everything I wanted without putting vehicle specific defines in AP_Airspeed.??

The biggest being Airspeed must be enabled for all vehicles & boards it is currently enabled on. And then be able to exclude APM_BUILD_ArduCopter being built-in by default.

[tridge]

the saving of 208 bytes is suspicious

[hendjoshsr71]

Added conversion code for Rover & Sub including an AP_Param method to help with moving the whole sub-group. Turns out my previous method didn't work.

However, there is an argument to be made that for Rover(Sailboats) & Sub that conversion for this may be overkill?
I still want to test a bit more on plane and on hardware but It seems conversion code isn't necessary in this case?

[hendjoshsr71]

the saving of 208 bytes is suspicious

@tridge
Yes, this was correctly suspicious. It seems that in GCS.cpp the vehicle specific defines do not get set.
The below define won't pick up the airspeed control sensors status flags that I moved up into GCS.cpp

If you have some time to help me with this it would be appreciated? It seems like a waf build system issue that I've been unable to solve yet.

#define HAL_AIRSPEED_ENABLED APM_BUILD_TYPE(APM_BUILD_ArduPlane) || APM_BUILD_TYPE(APM_BUILD_Rover)  || \
                             APM_BUILD_TYPE(APM_BUILD_ArduSub)   || APM_BUILD_TYPE(APM_BUILD_Replay)

[hendjoshsr71]

I've tested this param conversion for Plane on a CubeOrange and all seems well. I also tested the param conversion for Rover and Sub in SITL.

I've currently only set the HAL_AIRSPEED_ENABLED define for the vehicle libraries due to issues with APM_BUILD_TYPE.

[hendjoshsr71]

Closing this as these commits were merged in #18813