StreamStatus

Implemented streamStatus function. The following values are not implemented yet and currently returns default values:

`playbackSpeed` - returns `1`
`isPlaybackSpeedChangeable` - returns `false`
`isSeekable` - returns `false`
I would prefer the resolution to be an object according to: { width: meta.width, height: meta.height } - because it's easier to create the string WxH from the vars than it is to create the vars from the string.