Terrain generation from a image file

[SniperGoth]

Ability to generate terrain, using a heightmap file, by modifying the current heightmap tools, so that instead of using numbers for the brush, it just needs a black and white image instead.

While i don't know how the octree would behave because of how vertical some heightmaps can become, it would be quite useful and faster than doing it by hand.

Images made with GAEA, to see if this would work or not.

A crater

A mountain