Geometric Primitives: Exact Orientation and Incircle Predicates using simd

Last Revision:	Version 1.0, 2016-09-28 First release
Build Requirements:	Xcode 8.0 or later; OS X 10.12 SDK or later
Runtime Requirements:	Xcode 8.0 or later; OS X 10.12 SDK or later

This playground illustrates basic use of the the simd_orient and simd_incircle predicates from the simd module, and compares them with some other common methods of performing similar calculations.