Release v0.4.0

Added

• Added compas_occ.geometry.OCCCurve.
• Added compas_occ.geometry.OCCSurface.
• Added compas_occ.brep.BRep.__add__ to support boolean union through "+".
• Added compas_occ.brep.BRep.__sub__ to support boolean difference through "-".
• Added compas_occ.brep.BRep.__and__ to support boolean intersection through "&".

Changed

• Changed base class of compas_occ.geometry.OCCNurbsCurve to compas_occ.geometry.OCCCurve.
• Changed base class of compas_occ.geometry.OCCNurbsSurface to compas_occ.geometry.OCCSurface.
• Changed compas_occ.brep.BRepEdge to use compas_occ.geometry.OCCCurve.
• Fixed bug in compas_occ.brep.BRep.to_meshes.
• Fixed registration of curve plugin constructors to support multiple inheritance.
• Fixed registration of surface plugin constructors to support multiple inheritance.

Removed