Add another chak for the tests

Address PR comments and add more test cases

Fix edge case on Windows

Fix broken test on windows

Recreate the timestamp with timezone

Coerce all timezone to datetime.timezone

Add metadata to compat tests

Add meta to compat tests

Add a check for the buff len from denormalizing timestamps

Add a note in the docs about using the time zone info to create other time zone types

Add comment about the old PD_TIMESTAMP normalization

Handle case when we have a valid tz from a past version

Fix tz in meta in backwards compat test

Fix install of old protobuf version

Remove outdated assert

Add 0 offset case

Add write of meta data