[AN] Gaussian trendlines

This trend indicator wants to detect possible buy and sell zones.

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Updated trend lines

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Added alerts for line crosses

Added a parabolic switch so it can be used for other markets (like FX and commodities - maybe alts too)

ETHUSD
Without parabolic

With parabolic

XAGUSD
Without parabolic

With parabolic

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Added more line variants

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Added H3' line to match other markets/exchanges

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Small coloring updates + watermark

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Added forecast

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Adding back style editing as some lines were invisible on white background

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Added FX usage

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Add info pane that contains the current price for each line and the forecast price(s).