Add AiCatapult - an improved version of AiLauncher which also controls steering angle

[altexdim]

Add AiCatapult - an improved version of AiLauncher which also controls steering angle

Comparing to AiLaunch this particular class also controls the angle.

To be able to use it you need to change /manage.py:

old one

from donkeycar.parts.launch import AiLauncher

aiLauncher = AiLauncher(cfg.AI_LAUNCH_DURATION, cfg.AI_LAUNCH_THROTTLE, cfg.AI_LAUNCH_KEEP_ENABLED)
V.add(aiLauncher,
      inputs=['user/mode', 'throttle'],
      outputs=['throttle'])

new one

from donkeycar.parts.launch import AiCatapult

aiLauncher = AiCatapult(cfg.AI_LAUNCH_DURATION, cfg.AI_LAUNCH_THROTTLE, cfg.AI_LAUNCH_KEEP_ENABLED)
V.add(aiLauncher,
      inputs=['user/mode', 'throttle', 'angle'],
      outputs=['throttle', 'angle'])

[DocGarbanzo]

This class is effectively just a copy of the above class with a very small change to return 0 angle in launch mode. We should probably drive this with a single bool switch in the AiLaunch class above. Also the () should go. Then we should add a config parameter in cfg_complete.py that can trigger the 0 angle behaviour and pass this in complete.py

[DocGarbanzo]

@altexdim - do you want to have a look at the above code review and make the corresponding changes?

[altexdim]

Yes, absolutely, thank you for the review, I'll fix it as I find some time