CLOUDSTACK-8001: test_add_remove_network.py - Tag invalid test case as invalid

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>
CLOUDSTACK-7993: Code enhancement - test_egress_fw_rules.py - Removing unncessary waits

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>
CLOUDSTACK-7847: add max.domain.* in global setting and display domain resources in listDomainsCmd response
CLOUDSTACK-7563: Fix potential NPE in checking answer

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
(cherry picked from commit d42e3df9cf43b0ad46d406c6ab5b1d8c811d0239)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>