large supplemental uploads form

[brez.]

add a new custom form within the master of resources section of the admin console, with access permissions only for the master of resources group, for large supplemental url zipfile uploads. it should have 3 fields: collection dropdown, supplemental field dropdown (tile index, supplemental report, lidar breaklines), and open url field.
this will be so @mitchellryant can screen and verify excessively sized zipfiles. once he approves, he can manually upload to s3 with the proper naming convention and then use this new form to update the collection table with the url he pastes.
the save form process should verify the pasted url naming convention is correct for the collection and supplemental url type.

[brez.]

resolved 1eafe7b