[RD] HLGO - GANN fibonacci (square/box, based on bars, h&l)

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Sept 24 - 2019 - HLGO - GANN V1
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Description
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Script to plot a gann related model (square / box ), try the different params.
Next version will be a time based version. Current version uses bars
(aka bar_index) so it can't plot beyond the last bar accept by extending

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Version : v1 (notes
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NaN

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PLEASE -TIP- (we are trying to raise ₿100 to educate the wales)
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