Add Bacon cipher operation

[kassi]

This PR adds encoding and decoding for Bacon Cipher in different variations.

For decoding:
You can choose between the reduced (original) alphabet (where I=J and U=V) and the complete 26 character alphabet.
You can choose which letter translation to code to use:

• 0/1 only treats 0 and 1 and ignores everything else
• A/B only treats A, a, B, b and ignores everything else
• Case treats all 26 standard characters and calculates code based on uppercase/lowercase
• A-M/N-Z treats all first letters of each word
  Additionally there's the option to invert the translation.

For encoding:
You can only choose between 0/1 and A/B translation and the inverse.
In addition to that you can specify whether you want to keep special characters like whitespace or punctuation.