pass use_fake_hardware to moveit to change default controller

[relffok]

Fixes https://github.com/UniversalRobots/Universal_Robots_ROS2_Gazebo_Simulation/issues/21

[fmauch]

I just pushed this to a humble branch. For rolling the parameter has been renamed to use_mock_hardware and is a candidate for being removed.

One way out could be to set an initial_joint_controller as it is done for the control launch file, as well.

[fmauch]

Closing in favor of #43

[fmauch]

@Mergifyio backport iron

[mergify[bot]]

backport iron

🟠 Waiting for conditions to match

- [ ] `merged` [📌 backport requirement]