make use of calculatePath to restrict areas

[nomisum]

Current implementation doesnt allow for 100% restricted areas.

What we could do here is use the new calculatePath to check each Node with _nodePosition inArea "mrk_restrictHere_1" and send the units its merry way or recalculate with new positions if necessary.

[nomisum]

calculatePath takes a while and is still a bit bugged (executed twice). still it might work.

current concept:
take 4 random points ABCD
calculate path AB
check each generated node if its in restricted area
if one is, retry with another position B else begin checking BC
save path generated
rinse repeat until all positions are verified
apply all individual nodes as waypoints

[Fusselwurm]

some work has already been done on https://github.com/gruppe-adler/grad-civs/tree/areaRestriction

[Fusselwurm]

alternatively: predefine everything offline: like here https://github.com/devgru-club/ALiVE-indexes/blob/master/%40Kunduz%20%20CUP%20-%20FRL/x/alive/addons/civ_placement/clusters/clusters.cup_kunduz_civ.sqf or bake into map via config

[Fusselwurm]

see also #63