- Add tooltips to some thing/line arguments
- Pushable things now have a unique color (brown)
- Changed some other thing colors

Visual Mode: fixed an issue where trying to apply a rotation to things that were not seen yet would cause a crash

- Rename some linedef actions and arguments
- Reorganize thing types, increase color use
- Organize common config

Fixed a problem where not selected geometry and things could not be dragged when the "don't move selection if any part of it is outside of map boundary" option was enabled

Re-enable texture scaling

See merge request STJr/UltimateZoneBuilder!11