Fix generator of test vectors

Fix generator of test vectors for contracts unit tests (missing IsRevocationChecked=1 flag in mtp).
Unification of sig & mtp test vector generators to minimize differences.
СircuitQueryHash - fix param name (first letter was cyrillic)
Unification of generateTestData & generateJSONLDTestData function signatures between sig & mtp.
Diff in testvectorgen/credentials/onchain/*/testdata/ is only in position of isRevocationChecked flag in input&output json.

Newly generated test vectors are already used here: https://github.com/iden3/contracts/pull/173

iden3 / circuits