Start refactoring network barclamp to add per-network roles. [4/4]

This pull request series starts the work of making network definition
and usage dynamic by representing networks as roles, and IP/interface
allocations to a node as noderoles.

I also started throwing away more code we do not need.


 .../barclamp/libraries/barclamp_library.rb         |  162 --------------------
 chef/cookbooks/barclamp/libraries/ip.rb            |    4 +-
 chef/roles/deployer-client/role-template.json      |   43 +-----
 3 files changed, 3 insertions(+), 206 deletions(-)

Crowbar-Pull-ID: cf6cf08bb7869606011fdde39fb5680b75dc0997

Crowbar-Release: development