chore(test): filter only built files for Karma
chore(test): filter only built files for Karma

Closes #240

ppolyzos/ng-lightning,dballance/ng-lightning,dballance/ng-lightning,ihym/ng-lightning,ihym/ng-lightning,ppolyzos/ng-lightning,ng-lightning/ng-lightning,sadesyllas/ng-lightning,esarbanis/ng-lightning,esarbanis/ng-lightning,ng-lightning/ng-lightning,sadesyllas/ng-lightning,sadesyllas/ng-lightning,esarbanis/ng-lightning,ihym/ng-lightning,dballance/ng-lightning,ppolyzos/ng-lightning