Add CLI wrappers for network_{create,delete}
Add CLI wrappers for network_{create,delete}

SahilTikale/switchHaaS,henn/hil_sahil,kylehogan/haas,henn/haas,kylehogan/hil,kylehogan/hil,SahilTikale/haas,henn/hil,apoorvemohan/haas,lokI8/haas,meng-sun/hil,henn/hil_sahil,CCI-MOC/haas,apoorvemohan/haas,henn/hil,meng-sun/hil