System.FormatException: Playlist missing required EXT-X-VERSION tag.

[stambunan]

A format exception is currently being thrown when the EXT-X-VERSION tag is not included in the response for a Master Playlist. Looking at the specification, it seems that this is an optional tag which should only be available when tags or attributes that are not compatible with protocol version 1 is used.
https://tools.ietf.org/html/rfc8216#section-7

Sample master playlist without the EXT-X-VERSION tag
https://tools.ietf.org/html/rfc8216#section-8.4

Can we update the check so it does not enforce an EXT-X-VERSION check on https://github.com/tmk907/PlaylistsNET/blob/master/PlaylistsNET/Content/HlsContent.cs#L33 ?