tzf's preprocessed timezone data

Update Data Steps

1. Download latest timezones-with-oceans.geojson.zip from https://github.com/evansiroky/timezone-boundary-builder/releases

2. Run:

   ```bash

   Install cli tools

   make install

   Produce new data

   make gen

   stage

   git add combined-with-oceans.pb git add combined-with-oceans.reduce.pb git add combined-with-oceans.reduce.compress.pb

   commit

   git commit -m "bump to xxx" git push ```

Refer

• Protocol Buffers define: https://github.com/ringsaturn/tzf/blob/main/pb/tzinfo.proto
• Maintain tools
  • geojson2tzpb
  • reducetzpb
  • compresstzpb
  • preindextzpb
• To view data in GeoJSON format(which is more convenient to show on map), see https://github.com/ringsaturn/tzf-server

Usage:

• Go: https://github.com/ringsaturn/tzf
• Rust: https://github.com/ringsaturn/tzf-rs