Surfaces support

[tmptrash]

At least we have to support:

• water
• lava
• sand
• holes
• energy
• stones
• poison

They should move to randomly slected points (many) in a world. If some percent of dots (block) are not moving then random point should be changed. Because it will have many points, we will have many areas with different surfaces.
Config for one surface:

• color (%16 should be index to surface)
• barrier (can go through or not)
• energy (decrease of energy if organism above this type of surface)
• step (percent of step 0...1 if organism above this type of surface)
• radiation (percent of radiation, which is applied to organism if it steps on this surface)
• delay (surface delay between steps)
• amount (amount of dots for this surface)
• dirs (amount of random directions for surface moving)
• scan (amount of pixel processes by one time of running Surface.move() method)
• dirUpdate (Amount of movements after which random direction will be changed)

Amount of all surfaces dots should not be greater then amount of dots in a world. Think about configs for mutations and age.

Here is a simple algorithm:
Just go through all dots in a world and move them to dirx, diry. This is how we remove all Surface arrays. Maybe merge Energy and Surface classes.