HTTP2 stream ID is not checked for some frame types

According to RFC7540 frame types DATA, PRIORITY and HEADERS are associated with particular data stream, therefore if its stream id is 0 this should be processed as PROTOCOL_ERROR.

Similarly frames of types GOAWAY and SETTINGS must not be associated with particular stream id other than 0, if so then PROTOCOL_ERROR should be raised.

With current implementation this requirement is not checked causing discrepation against RFC specification.