converts a text to pig latin with unit test

RESULTS: "happy" -> "appyhay"; "duck" -> "uckday"; "flow" -> "owflay"; "fly" -> "flyay"; "egg" -> eggway"; "inbox" -> "inboxway"; "what the heck is this stuff" -> "atwhay ethay eckhay isway isthay uffstay "; "what the heck is this stuff?" -> "atwhay ethay eckhay isway isthay uffstay? "; "what the heck? is this stuff?" -> "atwhay ethay eckhay? isway isthay uffstay? ";

ISSUES:

• special characters are handled as if they were letter
• except the last special character directly at the end of a work (no spaces etc)

"what the heck,,,, is this stuf???" -> "atwhay ethay eck,,,hay, isway isthay uf??stay?"

future plan: converts entire text to pig latin