roswiki: document auto-starting ROS-I programs

[gavanderhoorn]

As per subject: the documentation should include some information on how to setup a controller to auto-start the ROS-Industrial programs after controller boot.

[gavanderhoorn]

@chrisgilmerproj reported difficulties running the (new) driver in AUTO mode and also provided some comments on how to configure the/his controller to get this to work.

Ref: gavanderhoorn/fanuc_driver_exp#2 (comment).

[chrisgilmerproj]

Thank you for following up on this. If you need any help with the documentation please let me know.