webadmin: host-deploy: Modifying Add\Edit Host popup view

1. Adding username and password fields for authentication.
2. Adding ssh fingerprint field and fetch button.
3. Adding port field to communicate with host.

Change-Id: I4e59c8b89da7345733439db95bdb4c729435e372
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>