Removed the allocation of the CMSampleTimingInfo when appending a video buffer.
Added sourceFormatHint in the initialization of AVAssetWriterInput's.
WIP 240fps, trying to be able to record at 240fps with absolutely NO lost buffer.
Improved overall performance especially while recording in high framerate.
Added a "fastRecordMethodEnabled" property that will make the recording uses an AVCaptureMovieFileOutput.