Update server_functions.sqf

Cut & paste casualty
minor range adjustments
Update cfgVehicles.hpp

Added definition for class TANK.

This will make vehicles like the M113 much easier to correct in future roll outs as currently many of them have turret issues.
Update AH6.hpp
Update Offroad_DSHKM.hpp

Drop in the segments that actually ALLOWS the player to upgrade to the different variants.
Update fn_damageActions.sqf

Bikes can currently be unlimited siphon sources
added Items for a simple Plantingsystem
Fix Maintain Area/Preview not disappearing

When players would look at a plot pole, they would get the maintain/preview option and if they looked away they would still have it.
Merge pull request #1509 from SJossy/patch-2

Update server_functions.sqf
Merge pull request #1512 from raymix/master

minor range adjustments
Merge pull request #1521 from SJossy/patch-3

Update fn_damageActions.sqf
Merge pull request #1524 from Mikeeeyy/patch-2

Fix Maintain Area/Preview not disappearing
Merge pull request #1513 from McKeighan/patch-1

Update cfgVehicles.hpp
Merge pull request #1515 from McKeighan/patch-3

Update AH6.hpp
Merge pull request #1519 from McKeighan/patch-7

Update Offroad_DSHKM.hpp
Merge pull request #1523 from Legodev/master

added Items for a simple Plantingsystem
modular build code optimization + some extras
Merge pull request #1528 from raymix/master

modular build code optimization + some extras
Merge commit 'ef0a157eb28a24a3802322c96b169ea391bea600' into A_Plot_for_Life
Merge commit 'c66b229a96deecd0ecca1100dc2f682ade13f0d4' into A_Plot_for_Life

Update files based on Raymixs latest merge for modular building.