wrap_list is not honored for not-editable cells

wrap_list attribute is used to add an enclosing <ul> tag to table cell
content.
_data_table_cell.html lacks the code to add that element if the cell content
is not editable (i.e. inline_edit_available is False or update_allowed is
False).

This patch add that missing code and some tests to ensure wrap_list works as
expected.

Change-Id: I261c345790b4dd2c8c6865d98e6ddad136ae1a72
Closes-Bug: #1316666
adding policy check for neutron

Policy checks for all actions on firewalls, loadbalancers, network_topology,
networks, routers and vpn panels.

Co-Authored-By: Lin Hua Cheng <lin-hua.cheng@hp.com>
Change-Id: Id12257d3200f8af6ff590fd576c4cb6e414b455a
Implements: blueprint network-rbac
Merge "adding policy check for neutron"
Merge "wrap_list is not honored for not-editable cells"