webadmin: quota - subtabs resizable columns

Invoking enableColumnResizing() in all quota related subtabs,
and set fixed width for the sub-tab columns.

Quota subtab under datacenters main tab was already
covered in another patch.

Change-Id: Ib4702514c4316a4e2022018d6439e437d326caac
Signed-off-by: Gilad Chaplik <gchaplik@redhat.com>