Refactor traiettoria

Signed-off-by: Giovanni Garufi <giovanni.garufi@fwr.it>
Merge branch 'master' of https://github.com/Sibboard/Salvo

Signed-off-by: Giovanni Garufi <giovanni.garufi@fwr.it>

Conflicts:
	src/Gioco/Scacchi/Pedine/Alfiere.java