Throw an exception if batchSize exceeds maximum size supported by packing
In CKKS, throw an exception if batchSize > n/2, where n is the ring dimension.
In BGV and BFV, throw an exception if batchSize > n.
In CKKS, throw an exception if batchSize > n/2, where n is the ring dimension.
In BGV and BFV, throw an exception if batchSize > n.