Change satchel and mines to single gear slot

For consistency with all other items in Epoch.

SQF/dayz_code/Configs/CfgMagazines/CfgMagazines.hpp

@@ -3,6 +3,7 @@ class CfgMagazines
 	//External references
 	class CA_Magazine;
 	class HandGrenade;
+	class TimeBomb;