MarshalSolidity: wrong serialisation of Bsb22Commitments openings

[ThomasPiellard]

if len(proof.Bsb22Commitments) > 0 {
		tmp32 = proof.BatchedProof.ClaimedValues[7].Bytes()
		res = append(res, tmp32[:]...)

		for _, bc := range proof.Bsb22Commitments {
			tmp64 = bc.RawBytes()
			res = append(res, tmp64[:]...)
		}
	}

Only the proof.BatchedProof.ClaimedValues[7] value is serialised while it should be proof.BatchedProof.ClaimedValues[7:7+nb_bsb22_commitments]