New feature: mercs can drag people and corpses

Requires GameDir >= r2386.

For more info, see http://thepit.ja-galaxy-forum.com/index.php?t=msg&th=23508&goto=350989&#msg_350989

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@8474 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Tactical/SkillMenu.h

@@ -155,6 +155,17 @@ private:
 	UINT32 usSkill;
 };
 
+class DragSelection : public SkillMenuItem
+{
+public:
+	DragSelection( )	{}
+
+	void Setup( UINT32 aVal );
+	void Functions( UINT32 aVal );
+
+private:
+	UINT32 usSkill;
+};
 
 /**
  *	Flugente: traits menu popup box