feat(pcap): use new unknown decryption methods insice PcapNostaleClient

Get rid of unnecessary allocations as well

feat(crypto): add methods for converting unknown packets

fix(crypto): export session number correctly from encryption key

fix(crypto): catch exceptions inside of encrypt/decrypt methods

fix(crypto): correctly cast byte to char

fix(crypto): remove client world cryptography encoding conversion that does not work correctly

fix(crypto): decrypt with correct encoding in world cryptography

Merge pull request #74 from Rutherther/feat/pcap

Add support for pcap client

feat(crypto): add cryptography server, client, world, login...