Autoturf refinement

[cormander]

As a campaign manager, I would like the autoturf to create a polygon turf instead of a rectangular turf so that we can reduce overlap with other turfs.

This feature is done when:

• Turf created with autoturf have more than 4 points
• Turf boarders other turf created with the same autoturf operation
• Overlap between turf is minimal