Add ability to get relative path in Xmf\Module\Helper\GenericHelper path() method

[zyspec]

Enhancement
It would be useful in some instances (for example when adding scripts using $xoTheme->addScript() with browse.php) to be able to get the module's relative path to the XOOPS root.

Propose adding a parameter to the GenericModuleHelper path() method to include a 'relative' parameter... something similar to:

    public function path($path = '', $relative = false)
    {
        $path = '/modules/' . $this->dirname . '/' . $path;
        return ($relative) ? $path : XOOPS_ROOT_PATH . $path;
    }

This is backward compatible with existing XMF / module implementations.

[zyspec]

Can I ask why this was closed? It's not the same as #65

[mambax7]

After I merged the #65, it was closed automatically. I can reopen it again...

[geekwright]

Can I ask why this was closed? It's not the same as #65

My bad. I grabbed the wrong issue and added it to the commit comment. I thought I had changed it, but it survived. Sorry.