Intermediary commit.
Adding tests
Extracting block manipulation api into their own namespace.
Detail on docstring.
Formatting
Simplification.
Adding new functions
Optimization
Adding new functions
Does not work. Trying out new way
stabilisation
clarify
Improve the api relative to encryption.
Compute the key from the encrypted message.
Solve euler 59 using the mechanics
Make tests pass (a dark story about Float and Double interpretation that escaped me)
Remove dead code.
Formatting
Increasing the \space character stats which is slightly more than \e.
Reorganize namespace accordingly.