goBrush 3.0.0

- added Worldedit integration for //undo //redo and //gmask
- added a push and pull mode
- added a 3D mode
- removed bounding box (//gmask #region) and mountain mode
- optimised placing of blocks with Fast async WorldEdit
- fixed PlotSquared problems
- removed internal heightmap with a better system for less RAM usage
- heightmaps should be a lot more smooth now
- added 3 heightmaps for better use...

- fully recoded thanks to Jeffrey

- added pages for more than 53 brushes

- added brush previews in the lore of the brushes

- added limit bypass permissions

- added command to export/create new brushes