Added network API support for enable_interface [1/2]

Added support for enable_interface network API call
Also fixed network API BDD test that was accidently broken by a prior pull


 BDD/bdd_restrat.erl                |    2 +-
 crowbar_framework/config/routes.rb |    1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

Crowbar-Pull-ID: fe0917c7e9a995496f74a4c4b8261c69cda8201c

Crowbar-Release: development