Network config manager v1.0.4

Update DNS servers configuration CLI and APIs

Network config manager v1.0.3

Updated get / set DNS servers, DUID, IAID API implementaitons.

v1.0.1

Supports following commands

set_iaid
get_iaid
set_duid
get_duid
set_dns_servers
get_dns_servers

v1.0.0

add common lib, command line arg parse andcommand placeholders for li…