Gets or sets the position at which to start rendering the target value, measured from the front/bottom of the control as a value from 0 to 1. Values further from zero than 1 can be used to make this extend further than the normal size of the bullet graph.
Target Platforms: Android 4.4+, iOS 8+
Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+
