adding MODS form and integration to 7.x-1.4 branch

This request adds a default MODS form to the Collection Solution pack. After specifying the label and PID for the collection, the user is presented with a MODS form to fill out.  I think this fills a gap - collection objects can now be described with their own metadata. Those descriptions can be indexed and exposed in the interface.
I modelled that code from the current PDF solution pack so it too has a depreciated hook?