update bin/naarad to use APIs
Fix issues with skip_plots and cluster metric
Drop support for custom resource path
Add support for all the command line arguments
Sync with latest linkedin/naarad
Update with appropriate ts_start and ts_end priority. API will not support run_steps execution
Prioritize CLI ts_start/ts_end appropriately
Add docstrings
Add log message with Report location
Merge pull request #230 from SharadGandhi/bin_naarad_api

Refactor bin/naarad to use APIs