ADDED new rectangle graphics tool for PCBNew and Footprint Editor.
Also adds rectangle tool to both Footprint Editor and PCBNew Place
menus.
The Aux Origin tool can come back once we have multi-select toobar
buttons.
Also collapses an unnecessary level out of the auxOrigin and gridOrigin
settings.
Fixes https://gitlab.com/kicad/code/kicad/issues/2246
This checks the movement against a maximum value that would place the
selection outside of the valid area for the footprint or board.
Fixes: lp:1833478
* https://bugs.launchpad.net/kicad/+bug/1833478
(cherry picked from commit 845833e8fd)