Add FlapDown & FlapUp + comment a fonction
Add headers of new flap functions
Add test of throwing spear
Modify test function for the flap
tools_lib and main : Change values of flap -> between 180° & 270°
intel : first try of doin' a square
define SERVO_ID's
Merge remote-tracking branch 'origin/master' into Let's_go_to_the_world