• BREAKING CHANGES
• added support for drawing below and above areas separately in LineChart
• added cutOffY feature in LineChart, see this issue
• added aboveBarData in LineChartBarData
• BelowBarData class renamed to BarAreaData to reuse for both above and below areas
• belowSpotsLine renamed to spotsLine in BarAreaData
• cutOffY and applyCutOffY fields are added in BarAreaData to handle cutting of drawing below or above area
• BelowSpotsLine renamed to BarAreaSpotsLine, and inside it checkToShowSpotBelowLine renamed to checkToShowSpotLine