Fix windows warnings in Vector2, 3 and 4

[ahcorde]

Signed-off-by: ahcorde [email protected]

🦟 Warnings

Summary

Fix windows warnings in Vector2, 3 and 4

Checklist

• x ] Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge

[codecov]

Codecov Report

Merging #284 (630046a) into ign-math6 (a4aa7d8) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           ign-math6     #284   +/-   ##
==========================================
  Coverage      99.65%   99.65%           
==========================================
  Files             67       67           
  Lines           6359     6359           
==========================================
  Hits            6337     6337           
  Misses            22       22           

Impacted Files	Coverage Δ
include/ignition/math/Vector2.hh	100.00% <100.00%> (ø)
include/ignition/math/Vector3.hh	100.00% <100.00%> (ø)
include/ignition/math/Vector4.hh	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a4aa7d8...630046a. Read the comment docs.

[jwnimmer-tri]

FYI I'm not a project maintainer, just trying to do my part and review other PRs as requested in the template for the PRs that I have submitted.

[osrf-triage]

This pull request has been mentioned on Gazebo Community. There might be relevant details there:

https://community.gazebosim.org/t/new-ignition-releases-2022-03-01-citadel-edifice-fortress/1313/1