2.0.0 Released

  1. Undo/Redo command
  1. Removed derived attributes from property window

I noteced that the derived attributes displayed in the property window. I removed them from the window because I can’t deal with them properly. There are a myriad rurles.

https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/ifcgeometryresource/lexical/ifcdirection.htm