UI, instance nics tab: Implement 'add network' action

-Change detail widget to support 'add' action on per-nic/item detail groups

-Implement add network/NIC action on instances NIC tab
VM NICs tab: Style 'add network' action
NICs, add action: Fix for when detail view isn't present anymore
Detail view, multi-groups: Put 'add' button on top
WIP - Implement/style NIC actions
WIP
Add granular settings widget
Add zone-level granular settings UI
Add cluster-level parameters
Add primary storage-level parameters UI
Add seondary storage-level parameters UI
Add account-level parameter UI
Always maximize detail views with settings tab (to fit listView layout)
Merge branch 'master' into ui-add-remove-nics
Merge branch 'master' into ui-add-remove-nics
Better styling for multi-detail panels
Update affinity icon
Add remove NIC API calls
Merge branch 'master' into ui-add-remove-nics
Merge branch 'ui-add-remove-nics' of https://git-wip-us.apache.org/repos/asf/cloudstack into ui-add-remove-nics