zip: partial start of ZIP64 support.
zip: further ZIP64 implementation.
zip: move made by version to a constant so that its easily adjusted as higher specs are used.
fix last commit.
zip: implement option defaults including zip64.
zip: merge zlibDefaults with defaults.
zip: rename setDefaults to normalizeEntry.
zip: make the usage of magic a little more clear.
zip: remove zip64 option as it should only impact cases where things were already unparseable.
zip: use existing gpb variable.
zip: always use data descriptor when dealing with ZIP64.