In progress:

*Have 2 field connecting



Details:

- in egrid::DrawLine, when crossing edge c, should do some test for rim.
- Test when it end on D or B for grid switching. 
- When a trace is exactly on a correspondant edge, it should be copied to both
edge.??? Probably not. But have test in DrawLine that when the start point is 
on a connecting edge and the "end" is out of the shape, to pass to the other
grid. Now we just need to figure out when end is out of the grid.
- Test the current code to transit from one field to the next
- Need to connec the 2 new coorrespondant edges (Need to be tested now)

Cameras:
- Are not owned by any map element, but by the game

Todo:
- Camera need to be made aware of new grids
	- Should the list of interesting objects be at the grid or empire
	  level? Currently grid. Maybe Arena. Why not have it at all level.
	  Inserting at the empire, then it probagate to the right structure.
	  This way, the camera code can pick where to toggle based on user
	  input.
- Cycles need to be made aware of new grids
- Does an ePoint store its grid

