Do we need to open each file on the module path to find the enclosed name?

[Peter Kriens]

The module path is defined as:

	`A module path is a sequence of directories containing module artifacts which are searched, in order, for the first artifact that defines a suitable module.`

This seems to indicate that the VM must iterate over all the directories (I assume not recursive?) and open the JARs to read the module-info.class file so that it knows the module name?  

This seems quite expensive for large systems?