builtins: implement ST_FrechetDistance and ST_HausdorffDistance

[erikgrinaker]

Release note (sql change): Implement the geometry builtins
ST_FrechetDistance and ST_HausdorffDistance.

Closes #48940.
Closes #48947.
Closes #48948.

[blathers-crl]

Thank you for contributing to CockroachDB. Please ensure you have followed the guidelines for creating a PR.

My owl senses detect your PR is good for review. Please keep an eye out for any test failures in CI.

I have added a few people who may be able to assist in reviewing:

• @otan (author of geo/geomfn: implement ST_FrechetDistance({geometry,geometry,float8}) #48940, author of geo/geomfn: implement ST_HausdorffDistance({geometry,geometry,float8}) #48947, author of geo/geomfn: implement ST_HausdorffDistance({geometry,geometry}) #48948)

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[cockroach-teamcity]

This change is 

[otan]

small thing!

[blathers-crl]

Thank you for updating your pull request.

My owl senses detect your PR is good for review. Please keep an eye out for any test failures in CI.

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[otan]

bors r+

[craig]

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[craig]

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[craig]

Build succeeded:

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