Do not display hidden files when selecting installation media when creating VM in new UI
I'm testing the UI with a FreeNAS system updated to the latest FreeNAS-Nightly version.
In the VM Creation Wizard, step 6 (Install Media), clicking "browse" for the "Choose installation media image" field shows `.foo` files, which should be filtered.
- Status changed from Ready for Testing to Passed Testing
- Needs QA changed from Yes to No
Testing with FreeNAS Mini manually updated to FreeNAS-11.2-MASTER-201807110935:
Went to VMs/Wizard and began creating a new FreeBSD VM. For the “Choose installation media image” field, clicked “Browse” and looked through all available directories. No hidden files or non-installation files appear visible.