schema parsers CHANGE extend keys checking for augmented keys
schema parsers CHANGE extend keys checking for augmented keys

list's keys must be direct list children or leafs from grouping.
So far libyang was accepting also keys from augment.

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