Relative Volume Metrics

Simple table the reports 3 volume metrics.
1. RelVol - reports relative volume using the TradingView relative volume function. Updates bar by bar.
2. %30D Vol - divides today's volume by the 30 day average volume. Updates bar by bar.
3. Bar Threshold - Calculates the average volume to a custom lookback period and turns red when volume reaches a configurable standard deviation threshold for that period