Moving objects

[hhirsch]

Add moving objects/platforms. This might depend on scripting support.

[turlututututu]

Sounds interesting! Has there been any breakthrough on that matter? What would it imply? moving along a fixed path like a rail or moving freely?

[hhirsch]

@turlututututu I thought about a simple command to do it

transition(entity, finalPosition, speed);

The main idea is for simple movement like a door or an elevator. There hasn't been a breakthrough yet. And it does depend on #69. Which is blocked by GlPortal/glPortal#141