create files
create Makefile
Add main file
Add definitions and functionnames
include header file
Call hierachy for encrypt, decrypt
Add helper functions F for cipher and S for rotation
Add parameters to helper functions
Implemented rotation function S
Implemented cipher function F
Implemented encrypt function, changed return types of encrypt and decrypt functions
Implemented decrypt function
Implemented Key schedule, changed return value of key schedul function
Updated Makefile
Bugfixes
Debugging
Rename MAKEFILE to Makefile
fixed bug in key schedule
Merge branch 'development' of https://github.com/ralphankele/nsa-cipher-simon into development
Do some cleanup