iOS / PNChart

定制饼状图

Signed-off-by: hugo- <1004581900@qq.com>

Disable animations when drawing charts (if desired).

Show only titles, not values nor percentage

Conflicts:
	PNChart/PNPieChart.h
	PNChart/PNPieChart.m

Enhancements to Bar and Line Charts

2. You can specify the border color for a PNBarChart
3. Fixed some problems in PNBarChart whereby the top and bottom margins were not being respected.
4. PNLineChart now has the same margin properties as PNBarChart so that you can overlay them and have the bars and the points in the LineChart line-up nicely.
5. You can now specify for a PNLineChart that points display their value using a font, format and color, just above the point itself.
6. A PNLineChartDataItem can now have two values, a raw value for displaying via the formatter, and the graded value which is used to determine the position of the data point.  The former is new.  This allows you to have multiple line charts that have different min-max values and yet overlay them.  The new value can then be used to display a value meaningful to the user whilst the old value is used to render the chart point.

Using the Right Shadow Color instead of the Green Color

…art into openhood-independant-margins-bar-chart

Added decimal options for circle chart

…rrygdm-multiple-selection