Initial!

First commit!
test 1 passed
removed redundant files + passed test 2
test 3 passed
test 4 passed

Will have to be revised...
Added alphabet
Added letters -> numbers

May need to be revised
Added flowchart
Added loops for encryption
Re-did encryption

Stopped using lists to encrypt. Now only strings. Added string
"encrypted" as result instead of changing original string.
Made string into uppercase. Uppgiften klar.

CASE CLOSED.