Move ArmorUtils to org.pgpainless.ascii_armor
Move Armored*StreamFactory to org.pgpainless.ascii_armor
Move CRCingArmoredInputStreamWrapper to org.pgpainless.ascii_armor
Move SessionKey to org.pgpainless.s2k
Move RevocationAttributes to org.pgpainless.key
Move UserId to org.pgpainless.key
Move Passphrase to org.pgpainless.s2k
Move NotationRegistry to org.pgpainless.policy