Enable registered vector formats in spatial import extension

* Added registered vector formats in registry

(closes OpenFLUID/openfluid#438)
Add of missing vector types for drawing in MapView

(closes OpenFLUID/openfluid#434)
Fix of MapView zooming behaviour and points colors

* Fixed mouse wheel event behaviour
* Switched to version 2.0.1~beta3
Fix of file extension checking in spatial data import 

(closes OpenFLUID/openfluid#425)