added destroying of hexagons and split objectvector into seperate containers for balls and hexagons

Signed-off-by: sabot <sabot@inuits.eu>
added placeholders for powerup containers

Signed-off-by: sabot <sabot@inuits.eu>
put in some stuff for powerups

Signed-off-by: sabot <sabot@inuits.eu>
added a fastballs powerup (w.i.p.)

Signed-off-by: sabot <sabot@inuits.eu>