Support YAML and JSON config files.

[taurenk]

• Adding support for loading YAML or JSON files for Hydra config.
• Version bump.
• Regenerated package-lock.json

Closing Issue #165

[taurenk]

Here is a sample YAML config file:

hydra:
  serviceName: 'test'
  serviceDescription: 'test description'
  serviceIP: ''
  servicePort: 1234
  serviceType: 'test type'
  plugins:
  redis:
    url: 'redis://127.0.0.1:6379/15'

[cjus]

@taurenk can we add this as a hydra plugin?