Make sure we render the last y Label on LineCharts (Fixes ChartsOrg#1585

)

The wrong stride termination was causing us to not render the last text value.
Verified the issue in the `ChartsDemo` example, but have not looked closely
at other chart types.

Source/Charts/Renderers/LineChartRenderer.swift

@@ -549,7 +549,7 @@ open class LineChartRenderer: LineRadarRenderer
 
                 _xBounds.set(chart: dataProvider, dataSet: dataSet, animator: animator)
 
-                for j in stride(from: _xBounds.min, to: Int(ceil(Double(_xBounds.max - _xBounds.min) * phaseX + Double(_xBounds.min))), by: 1)
+                for j in stride(from: _xBounds.min, through: Int(ceil(Double(_xBounds.max - _xBounds.min) * phaseX + Double(_xBounds.min))), by: 1)
                 {
                     guard let e = dataSet.entryForIndex(j) else { break }