Product-line Analysis: Remove verbose messages to log
The product-line analysis produces many log messages, that are not relevant for the user:
!ENTRY org.fortiss.variability 1 0 2024-04-26 09:19:00.116 !MESSAGE [EMF product-line translation]: The reference "target" of type IConnector is supposed to be translated for a product-line analysis. Since this type is not specified to be translated, the translated sub-class Port will be used.