Gainzy RSI Diags

Shows trends in RSI - useful for predicting future direction of price action.

릴리즈 노트:

- added ability to show/hide diags
- added ability to control diag width and transparency
- added spring opportunity function

릴리즈 노트:

- removed spring opps (outside of btc on 1d tf they were completely unreliable)
- added RSI divergences (likelihood of them playing out increases when paired trend coloring)

릴리즈 노트:

> added overbought/oversold fill (you can toggle it on/off)

릴리즈 노트:

> diags now shown as lines not crosses