BUGFIX: Re-apply parts of NodeTypeConfigurationEnrichmentAspect

[rolandschuetz]

… after the Silhouettes are added

A manual test case can be found in #4

Fixes Issues #2 #3 #4

[mficzel]

I still do not like this as this fixes a thing that should be fixed in core. Imho the right solution would be to implement the features of the NodeTypeConfigurationEnrichmentAspect as postprocessors aswell. Then we only have to check wether @position already works for NodeType postprocessors and add @position: 'start' here.