Added setting proper name for xml file. Adapted exiting test(s) by adding missing path/name parameters to example data. Also improved null testing to get rid of warnings. Related to Issue [MWDAM-1670]
Added filling the slice data for Bishop and UpliftVan from kernel to engine. Note that this is not (yet) to be made part of the DamEngine output interface (not yet in interface code and not yet in output xsd).