Linting Package Dependencies
Linting Package Dependencies

Added 4 NPM package dependencies.
1 for JS linting, 3 for CSS Linting.

Change-Id: Ic6b4a5ddb6367b55d2c45172a0fa00db0ba4a49c
Closes-Bug: #1621196

absingla/contrail-webui-third-party,biswajit-mandal/contrail-webui-third-party