Ensure and document OpenVDB support

[pvela2017]

Proposed changes

Fix to issue #474 .

• Add OpenVDB installation instructions.
• Install OpenVDB on Humble image.
• Add note on Developping file.

Type of change

• 🐛 Bugfix (change which fixes an issue)
• 🚀 Feature (change which adds functionality)
• 📚 Documentation (change which fixes or extends documentation)

Checklist

Put an x in the boxes that apply. This is simply a reminder of what we will require before merging your code.

• Lint and unit tests (if any) pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)
• All commits have been signed for DCO

[hidmic]

First pass. CC @glpuga too.

[hidmic]

Overall LGTM

[hidmic]

@pvela2017 nit:

Suggested change

	> `beluga_vdb` requires OpenVDB to be installed in order to be used. For Ubuntu distributions previous to `Noble` OpenVDB needs to be installed from sources before building. Installation instructions can be found [here](beluga_vdb/README.md). If you don't need `beluga_vdb`, you can skip it using `colcon build --symlink-install --packages-ignore beluga_vdb`
	> `beluga_vdb` requires OpenVDB to be installed in order to be used. For Ubuntu distributions previous to `Noble` OpenVDB needs to be installed from sources before building. Installation instructions can be found [here](beluga_vdb/README.md). If you don't need `beluga_vdb`, you can skip it using `colcon build --symlink-install --packages-ignore beluga_vdb`.

[hidmic]

I'm happy with these changes.

Tagging @glpuga as he opened #474 first.