Nathan E. Egge authored Feb 08, 2019 and Nathan Egge committed Feb 08, 2019

This commit does not require the caller of Frame::new() to know to pad
 the width and height to multiples of 8x8 so that the internal buffers
 are allocated properly.
When filling the allocated buffers, callers should use the
 PlaneConfig.stride variable which is set by Frame::new().