Parity week 01

Skeleton for implementing the parity 2.0 game.

It basically gives the spectator a glimpse of what different scenes will this game have:
- A brief introduction showing in the horizon the caribeean island where turtle and crab live;
- A beach on the island where turtle and crab spend most of their time; (this will be the scenario for a set of puzzles)
- A part of the beach zooming turtle (to describe it)
- A part of the beach zooming crab (to describe it)
- An undersea scenario for a second set of puzzles