* Add Slab Transform Mode for widget free level blocking

* Add Set Mesh Pivot to mesh center or current widget location

* Add Create Static Mesh from Scratch (Plane and Cube)

1.0.7 Full Change Log

* Add Slab Transform Mode for widget free level blocking
* Add Set Mesh Pivot to mesh center or current widget location
* Add Create Static Mesh from Scratch (Plane and Cube)
* Add Draw Box
* Add Material management options (Compact/Override/Revert)
* Add Marquee Select Strict Mode option, while off will allow select edge or faces by select only partial vertices.
* Build mesh silent mode works on 4.16 too (previously only works on 4.15)
* Now SkipGenerateDistanceFields option default is on
* Fix Plane Cut might cause editor crash when cut result face area is zero
* Fix Create Face from Vertices might cause editor crash when selected vertices count is less than 3
* Fix Marquee Select not works properly in Quad Mode
* Fix Marquee Select Edge not working when Ignore Backfaces is on
* Fix Draw Plane Axis' default orientation