Newly added airports in tzmaps branch do not exist in official listing #169
Description
Many of these new airports added in commit 9b88e0b don't exist in the official listing:
- https://www.iata.org/en/publications/directories/code-search?airport.search=ZZF
- https://www.iata.org/en/publications/directories/code-search?airport.search=ZWK (Is this supposed to be Suwalki Airport? Polish Wikipedia says it is QPH, but IATA doesn't have that: https://www.iata.org/en/publications/directories/code-search?airport.search=QPH )
Some of them do exist: