Need to quote some keys for yang.
The Kea6 reservations.json example file use 'somevalue'
as the identifier of a (flex-id) host reservation. Yang uses the same character '
for list keys so it conflicts.
The solution should be to convert the identifier in hexadecimal so:
- check the textual and hexadecimal forms can be used together / safely.
- check presence of problematic characters in a string used as a list key
- create an adaptor to quote or convert strings used as list key. Nothing hard but low priority as this is clearly a corner case.