Allow setting "collideConnected" flag for any physics elements where it is available

[Former user]

Reference: https://bitbucket.org/TwoLivesLeft/core/issue/277/collision-filters-masks-do-not-work

[Aaron Pendley]

Sorry, wasn't logged in. I created this :P

[JohnTLL]

Due to the way Box2D works this won't be settable on joints after they are created but there will be an option in the constructor.

[Aaron Pendley]

That'll do!