ZigZag VolumeAccumulator

This script plot a Volume Accumulator Histogram.
It accumulates volume after a price changes direction.
Use it to show how big is the bear or bull force.

I recommend to use Bandsize = 2 or 3 times ATR(300 or bigger)

This script uses the core of my ZigZag Bands indicator, https://br.tradingview.com/script/KSL2WLPx/
Use it to adjust Bandsize parameter.