test(core): add test for loading of validation rules
test(core): add test for loading of validation rules

SoftwareCraftsmen/valdr,kgislsompo/valdr,PesanskiGoran/valdr,PesanskiGoran/valdr,NFC-DITO/valdr,NFC-DITO/valdr,kgislsompo/valdr,SoftwareCraftsmen/valdr,netceteragroup/valdr