HoloPlay Core SDK with Looking Glass Portrait support

This release primarily includes:

• Update lenticular shader to sample two views and interpolate
• Optimizations to the example project quilt rendering process
• HoloPlayCore.h includes methods for querying default quilt settings
• Added universal dylibs for Mac (for x86_64)

HoloPlay Core SDK

The first beta release of the HoloPlay Core SDK.