Muliple plotting #9

[jonyrock]

Based on this issue: https://github.com/NatelEnergy/grafana-plotly-panel/issues/9

Need to be done:

• [ ] Screenshots in readme
• [x] Default name in TraceName field
• [x] Move "traces" to a separate tab
• [x] Links to CorpGlory DevTeam
• [x] Feature in README
• [x] @time / @index for each query , example: B Series@time

[ryantxu]

discussed with @jonyrock on slack... I will merge, and we will fix remaining issues in a new pull request