Add support for encoding 16 bit per pixel bitmaps#899

Merged

JimBobSquarePants merged 5 commits intoSixLabors:masterfrom

brianpopow:feature/Bitmap16bitEncoding

May 3, 2019

Commits on May 1, 2019

Implemented encoding of 16 bits per pixel bitmaps
brianpopow
committed

Commits on May 2, 2019

Add unit tests for 16 bit encoding and Bgra5551 conversion
brianpopow
committed

Commits on May 3, 2019