WIK-1273 Konvertierungsskript erstellen
WIK-1273 Konvertierungsskript erstellen

* fix non-standard conforming xml
* generate a separate closing tag instaed of single closing tag
* use PhotoVoltaicUnit (correct) instead of PhotoVoltaicUnits (incorrect)
* replace GeneratingUnit.ratedNetMaxP with PhotoVoltaicUnit.maxP

derrickoswald/CIMScala,derrickoswald/CIMScala