Release 1.9.0

[francescoleoni98]

• FEATURE: Added averageLineOverlapsChart on FLChart to let the chart overlaps the average line.
• FEATURE: Added possibility to hide x and y axes.
• FEATURE: Added showDashedLines in FLChart.
• IMPROVEMENT: Added uiColor(_:) and white(_:alpha:) FLColor inits.
• FIX: Orientation changes redraw.

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This discussion was created from the release Release 1.9.0.