public static HelpModuleCollection fromHelpDirectory(File dir) {
		return new HelpModuleCollection(toHelpLocations(Collections.singleton(dir)));
	}
Creates a help module collection that contains only a singe help module from a help
directory, not a pre-built help jar.
@param dir the directory containing help
@return the help collection
Ghidra/Framework/Help/src/main/java/help/validator/location/HelpModuleCollection.java