validation FEATURE check for keys order in data trees
validation FEATURE check for keys order in data trees

RFC 6020 specifies that the keys appear in order they are specified
in key statement and before any other list's node

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