* aes-tables.c: Deleted, tables moved elsewhere...

* aes-encrypt.c, aes-decrypt.c: New files; moved encryption and
decryption funktions, and needed tables, into separate files.

Rev: src/nettle/Makefile.am:1.30
Rev: src/nettle/aes-decrypt.c:1.1
Rev: src/nettle/aes-encrypt.c:1.1
Rev: src/nettle/aes-tables.c:1.6(DEAD)