MFI/RSI with Volatility Bands [LazyBear (edited)]

Edited version of the script by LazyBear.

Update of my previous script.

Features:
- plot both MFI and/or RSI (LazyBear only allows one of both)
- plot RSI/MFI band (over sold - mid - over bought) + indicator lines

リリースノート:

Corrected some variable naming and edited some colors.

リリースノート:

minor update

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minor update

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Added additional functionalities.

There are now 4 possibilities for highlighting overbought/oversold

リリースノート:

minor edit

リリースノート:

minor edit

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reduced the number of overbought/oversold options to 2 (from 4)

リリースノート:

Significant update:

* added VFI
addes Fast-Slow Stochastic RSA Convergence/Divergence Histogram

リリースノート:

* added Fast-Slow Stochastic RSI Convergence/Divergence Histogram