yin parser CHANGE remove code ignoring not supported statements
yin parser CHANGE remove code ignoring not supported statements

Now, we support complete YIN format (except extensions which are ignored),
so there is no need for blind skipping unknown statements.

PavolVican/libyang,lukasmacko/libyang,PavolVican/libyang,PavolVican/libyang,PavolVican/libyang,PavolVican/libyang,lukasmacko/libyang