feat: add function to aggregate path into a geojson path

[sunng87]

I hereby agree to the terms of the GreptimeDB CLA.

Refer to a related PR or issue link (optional)

What's changed and what's your intention?

In greptimedb, we store waypoints of a path row by row. However, when using with data process or visualization software, it treats a trajectory as a single value, either in geojson or other formats.

This patch introduces a new uadf geojson_encode_path that takes rows of latitude, longitude and timestamp to output a path that compatible with deckgl's path input.

It also refactors our macro for aggregation function to remove use from macro to avoid multiple use error when using the macro.

sqlness tests included.

Checklist

• I have written the necessary rustdoc comments.
• I have added the necessary unit tests and integration tests.
• This PR requires documentation updates.

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[codecov]

Codecov Report

Attention: Patch coverage is 5.03597% with 132 lines in your changes missing coverage. Please review.

Project coverage is 84.16%. Comparing base (a283e13) to head (4d19de0).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4798      +/-   ##
==========================================
- Coverage   84.45%   84.16%   -0.30%     
==========================================
  Files        1120     1122       +2     
  Lines      204139   204267     +128     
==========================================
- Hits       172414   171924     -490     
- Misses      31725    32343     +618     

[killme2008]

LGTM

[fengjiachun]

LGTM