Add aes128ctr implementations

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Add blowfishctr implementations

NOTE: contains GPL'd code.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Add camellia128ctr implementations

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Add serpent128ctr implementations

Note: contains GPL'd code.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Add twofish128ctr implementations

Note: contains GPL'd code.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Merge branch 'master' of github.com:jkivilin/supercop-blockciphers