Currencies %R Heatmap screener

This script is for Forex combinations of the following currencies: USD, EUR, GBP, JPY, CHF, AUD, NZD, CAD

- It uses security function to get 28 currency pairs, so that it may cost a few seconds to paint.
- It calculates %R of currencies and paint with fib color mentioned on my other script Williams %R Color Map
- Normally fib more currency stronger, and fib less the currency weaker. If too big or too small, considering trend change.

I always put on 3 charts with 1h, 5h ,1D to have a quick view.