Support for bazel in garden

[mjcarroll]

No description provided.

[caguero]

Do you have any recommendation or tutorial for checking this PR?

[mjcarroll]

Do you have any recommendation or tutorial for checking this PR?

This is the CI for it: gazebosim/gz-bazel#51

Instructions are here, but are incomplete as we are working up the stack: https://github.com/gazebosim/gz-bazel

[codecov]

Codecov Report

Merging #325 (1ca8f40) into gz-msgs9 (5a6edd1) will not change coverage.
The diff coverage is n/a.

❗ Current head 1ca8f40 differs from pull request most recent head 9115eb6. Consider uploading reports for the commit 9115eb6 to get more accurate results

@@            Coverage Diff            @@
##           gz-msgs9     #325   +/-   ##
=========================================
  Coverage     95.41%   95.41%           
=========================================
  Files            10       10           
  Lines          1026     1026           
=========================================
  Hits            979      979           
  Misses           47       47           

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[caguero]

Works for me following https://github.com/gazebosim/gz-bazel