Made changes to 2013 decryption files so that tests run with data
from the decballot from 2013. May need some additional testing.
Added Text files for NizkpDecryptionFunctionalTest.
Added textfile for NizkpDecryptionIntegrationTest.
Merge branch 'master' of https://github.com/KRD-KOMM-VL/verifikasjonsprogramvare