Game Timer

This application is a timer allowing you to track elapsed time from 1 to N players. Each player can have a different amount of time.
You can pause the timer by turning face down the phone.

Here the different kind of supported timers :

1. Game timer : decrease total game time by player.

2. Move timer : decrease turn time by player.

3. Move timer + save : decrease turn time by player. Unused time is added to the next player's turn.

4. Upcount : add elapsed time by player.

5. Turn counter : track the number of played turns by player.

6. Shared Game Timer : decrease total game

Full rework of the timing screen (according Lindsay Markus proposition):
- Allow to define player positions around the table.
- Allow to see timer of all players
- Allow to select directly a player for a new turn
- Add buttons for clockwise and anti-clockwise turn

Moreover
- Allow to use own mp3 for time's up tone
- Allow to set a warning tone from X second before end and every Y seconds. You can also define your own mp3 for that.