Pivot Ribbon {BLC}

Ported from Saty Mahajan "Saty Pivot Ribbon" on TV. 

A 3 EMA Ribbon + Conviction EMAs system that simplifies measuring and using EMAs for trend and support/resistance . If you are familiar with using a faster EMA (8 or 9) with a pivot EMA (21) you should feel right at home.

Features include:
- 3 EMA Trend Ribbon (8, 13, 21, 48 default)
- 2 color system for showing bullish trend
- 2 color system for showing bearish trend
- Ribbon folding visual indicates EMA crossover
- 13/48 Conviction EMAs

Inspired by Ripster EMA Clouds.