Some more work on the flac decoder
Added OMX_TizoniaIndexParamAudioOpus and OMX_TizoniaIndexParamAudioFlac to slaving
behaviour decisions in pcm, mp3, and opus ports.
Added OMX.Aratelia.audio_decoder.flac to the sql init script.
A number of fixes in the filter template component.
Fixes in the opus decoder component. This closes #11.
tplay now supports opus decoding.