When adding tool controllers from the job dialog, it will now
try to match the toolbit file with the currently selected library
and add use the toolnumber from there. If no match is found,
it will autoincrement from the existing tool controllers
in the job
Identified by MLampert. If multiple faces are selected at varying Z-heights, the `combineConnectedShapes()` method fails to connect them due to offset Z-heights. This fix places all input faces for that method into the same working plane.