Goldstandard analyzer should be able to compare more than 2 types
The goldstandard analyzer is currently only capable of comparing 2 types with each other.
It should be upgraded to be able to at least display n different types. This can be done by allowing the user to create and load more than 1 mapping. The results of those mappings are then merged and set as input into the table. The datamodel is currently a list of annotation-pairs, this needs to be extends to be able to store arbitrary length. The rest should work as intended