Added methods to COORDINATE to place marks on the map

* Added new methods to COORDINATE allowing to place marks for players on
the map. Now marks can be placed on the map using :AddToAll(),
:MarkToCoalition(), :MarkToCoalitionRed(), :MarkToCoalitionBlue(),
:MarkToGroup() and marks can be removed using :RemoveMark()

Moose Development/Moose/Utilities/Utils.lua

@@ -31,7 +31,9 @@ FLARECOLOR = trigger.flareColor -- #FLARECOLOR
 
 --- Utilities static class.
 -- @type UTILS
-UTILS = {}
+UTILS = {
+  _MarkID = 0
+}
 
 --- Function to infer instance of an object
 --
@@ -395,3 +397,11 @@ function UTILS.spairs( t, order )
         end
     end
 end
+
+-- get a new mark ID for markings
+function UTILS.GetMarkID()
+
+  UTILS._MarkID = UTILS._MarkID + 1
+  return UTILS._MarkID
+
+end