Small typos in DWTHandler

[D4rkCrypto]

I found two typos in seal::util::DWTHandler::transform_from_rev implementation. No bugs are triggered at runtime because this part of code is rarely called.

SEAL/native/src/seal/util/dwthandler.h

Line 281 in 0b058d9

for (std::size_t j = 0; j < gap; j += 4)

SEAL/native/src/seal/util/dwthandler.h

Line 322 in 0b058d9

for (std::size_t j = 0; j < gap; j += 4)

The iteration statement here should be:

for (std::size_t j = 0; j < gap; j++)

[WeiDaiWD]

Thank you so much! This is a nasty typo. I've fixed it internally and will include that in the next release.