v1.9.3 Handle more SPS cases #80

For #80

v1.9.2 - windows by default outputs debug to stderr

(re?) added missing ios testapp scheme

v1.9.0 - Adding some encoding meta, fixed avf encoding EOF too soon. …

…Encoder_Pop(null,0) now pops next frame without copy

Submodule got out of sync

v1.8.2 - Decoders & Encoders now allocating on (desktop tested) UWP, …

…and MediaFoundation supporting Yuv_8_88

Added a specific PushFrameYuvI420() c# interface

v1.8.0 - Exposed encoder to c#

v1.7.2 - DLL Plugin name changes again as mac editor was loading wron…

…g version.

v1.7.1 - UWP dll loading correction in unity/c#