private static String getMenuPathKey(String[] menuPath) {
		StringBuffer buf = new StringBuffer();
		for (String element : menuPath) {
			buf.append("/");
			buf.append(element);
		}
		return buf.toString();
	}
Returns the menu subgroup string for the given menu path.  This string is used to perform
sorting of menu items that exist in the same group.

@param menuPath the menu path for which to find its group
@return the menu sub-group
Ghidra/Framework/Docking/src/main/java/docking/menu/MenuGroupMap.java