[DO_NOT_MERGE] Fix gz servo angle scale to match joint angles

[Jaeyoung-Lim]

Solved Problem

The gzbridge servo actuators have a scaling between 0 and 1000, which are then converted to a normalized joint angle between [-1. 1] radians which are quite arbitrary. Since the GzBridge controls the joint angles directly through ignition transport, it would be nice if we can have the joint angles configurable directly from the CA interface

Solution

This commit sets the scaling parameters for gz sim servos to match joint angle values directly

Note: This is not a functional PR yet

The issue is that the actuator output value type is uint16_t and therefore cannot have negative values.

Exception while parsing /home/jaeyoung/src/PX4-Autopilot/src/modules/simulation/gz_bridge/module.yaml:
Traceback (most recent call last):
  File "/home/jaeyoung/src/PX4-Autopilot/Tools/module_config/generate_params.py", line 379, in <module>
    raise e
  File "/home/jaeyoung/src/PX4-Autopilot/Tools/module_config/generate_params.py", line 375, in <module>
    actuator_output_params = get_actuator_output_params(yaml_config,
  File "/home/jaeyoung/src/PX4-Autopilot/Tools/module_config/generate_params.py", line 307, in get_actuator_output_params
    raise Exception('minimum value for {:} expected >= 0 (got {:})'.format(key, standard_params[key]['min']))
Exception: minimum value for disarmed expected >= 0 (got -1.0)

@bkueng @dagar Would you have any ideas on how to solve this? The interface seems to be only strictly built for an unsigned datatype

[DronecodeBot]

This pull request has been mentioned on Discussion Forum for PX4, Pixhawk, QGroundControl, MAVSDK, MAVLink. There might be relevant details there:

https://discuss.px4.io/t/px4-community-q-a-april-12-2023/31552/1