Changed objects.link and objects.unlink from scene to collection

The parameter defaults were changed in rB0c829e8240eebd7ce4ed9d61f8682c0d6bf534f4

This should take care of most of the class property conversions to
use the new annotation format (colon instead of equals) for
assignment. There may still be a few edge cases that were missed.

Differential Revision: https://developer.blender.org/D3746

Run Flake8 on __init__ and mesh_discombobulator
Clean up the bl_info (the scipt is now a module)
Moved the discombobulator props to a separate property group
Removed the duplicate entries of props in the script
Added poll functions for discombobulator operators
Used a prop_dialog instead of popup
Moved the execution operator from draw to execute
Added a remove all doodads option
Moved the list of doodads from the label to a separate menu
Expanded on Usage Information to cover more limitations
and changed it to a menu
Limit the repeat protusions to 4 instead of 10
(There is no RAM and CPU big enough in the world
to take all in the hubris of unrealistic ambitions)