List/Start/Stop Network

This patch include UI files for list, start, stop networks.
Added network.html, network.js, network.css for network content.
Added network tab in kimchi-ui.html

Signed-off-by: Yu Xin Huo <huoyuxin@linux.vnet.ibm.com>
create/delete network

Add network creation and deletion UI

Signed-off-by: Yu Xin Huo <huoyuxin@linux.vnet.ibm.com>
network UI: update po files

update po files

Signed-off-by: Yu Xin Huo <huoyuxin@linux.vnet.ibm.com>
Add Network UI Files to Makefile

New files introduced by network UI need to be added to
makefile to be packaged.

Signed-off-by: Yu Xin Huo <huoyuxin@linux.vnet.ibm.com>