Add tool for listing inputs and outputs of OSGAR module

[m3d]

This is a simple (i.e. not perfect) tool for listing OSGAR module inputs and outputs:

(osgar) md@md-ThinkPad-P50:~/git/osgar-apps/dtc-systems$ python -m osgar.tools.get_module_io doctor:Doctor
doctor:Doctor (['audio', 'h265_video', 'report_latlon', 'scanning_person'], ['report'])

(osgar) md@md-ThinkPad-P50:~/git/osgar-apps/dtc-systems$ python -m osgar.tools.get_module_io osgar.drivers.lora:LoRa
osgar.drivers.lora:LoRa (['artf', 'cmd', 'pose2d', 'pose3d', 'radio', 'raw'], ['raw'])

[tajgr]

I miss there some better description of what the code do and how to use it.
Can you add some comments (documentation) in the code?

[m3d]

ACK, this was actually experiment (or PoC - Proof of Concept), that it is possible ... originally coded in osgar-apps, but it has sense for all OSGAR users. If you consider it valuable I will later extend it and add argparse there. The original motivation were some renames, which surely broke my configuration, so this was the first step towards automatic config check (or fill in in & out optional fields). Thanks m.

[tajgr]

Automatic config check sounds good.

[m3d]

well, it is not perfect ... tested:

(osgar) md@md-ThinkPad-P50:~/git/osgar$ python -m osgar.tools.get_module_io --name osgar.go:Go
Module: osgar.go:Go
Inputs: ['emergency_stop', 'pose2d']
Outputs: ['desired_speed']

but I had to add try-except in order to overcome required config parameters. As long as they are AFTER register it is probably OK.

OTOH sensor modules are probably expected to fail:

(osgar) md@md-ThinkPad-P50:~/git/osgar$ python -m osgar.tools.get_module_io --name osgar.drivers.oak_camera:OakCamera
Module: osgar.drivers.oak_camera:OakCamera
Inputs: []
Outputs: ['depth:gz']

hmm, there will be some bug, mmt

[m3d]

OK, now it looks better:

osgar) md@md-ThinkPad-P50:~/git/osgar$ python -m osgar.tools.get_module_io --name osgar.go:Go
Module: osgar.go:Go
Inputs: ['emergency_stop', 'pose2d']
Outputs: ['desired_speed', 'desired_steering']
(osgar) md@md-ThinkPad-P50:~/git/osgar$ python -m osgar.tools.get_module_io --name osgar.drivers.oak_camera:OakCamera
Module: osgar.drivers.oak_camera:OakCamera
Inputs: []
Outputs: ['depth:gz', 'color', 'orientation_list', 'detections', 'left_im', 'right_im', 'depth_seq', 'color_seq', 'detections_seq', 'left_im_seq', 'right_im_seq', 'nn_mask:gz']

[tajgr]

This i got for imu:

$ python -m osgar.tools.get_module_io --name osgar.drivers.imu:IMU
Module: osgar.drivers.imu:IMU
Inputs: []
Outputs: ['orientation', 'rotation', 'data']

The on_ call is missing there.
This is for realsense:Multicam:

$ python -m osgar.tools.get_module_io --name osgar.drivers.realsense:Multicam
Module: osgar.drivers.realsense:Multicam
Traceback (most recent call last):
  File "/home/jakub/miniconda3/envs/osgar/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/home/jakub/miniconda3/envs/osgar/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/home/jakub/git/osgar/osgar/tools/get_module_io.py", line 32, in <module>
    i,o = get_module_io(args.name)
  File "/home/jakub/git/osgar/osgar/tools/get_module_io.py", line 17, in get_module_io
    klass(bus=bus, config={})
  File "/home/jakub/git/osgar/osgar/drivers/realsense.py", line 241, in __init__
    for device in self.devices:
TypeError: 'NoneType' object is not iterable

some drivers are not well standardized..

[tajgr]

I think it would be valuable in the future.