Kamikadze UAVs kill reward added

[MrThomasM]

I won't merge this commit as this won't work on a dedicated server:

• BIS_fnc_WL2_killRewardHandle and BIS_fnc_WL2_friendlyFireHandleServer are not defined client sided.
• The "fn_WL2_sortSectorArrays error fix" is not a fix for the issue.

Only thing that could probably work is: _expl setVariable ["BIS_WL_ownerAsset", (getPlayerUID player), [2, clientOwner]];