userportal, webadmin: add element ids to vm general subtab

Added element ids to the vm general subtab -- every row, every column in the form.
The ids will have the format unique-prefix_rowX_colX_label and
unique-prefix_rowX_colX_value.

Also added some infrastructure to easily add ids to all of the sub-tab form views.

Change-Id: I0d2c6843c61a1d9364a36e8d4d3b5b64a1726f69
Signed-off-by: Greg Sheremeta <gshereme@redhat.com>