[GUI.Qt] Add clickable link to online documentation

[alxbilger]

TODO:

• [ ] Add this feature in SofaImGui

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[damienmarchal]

Definitely a must have. (for future work... rendering the docstring as markdown)

[alxbilger]

[ci-build][with-all-tests]

[bakpaul]

That's a great feature with the growing community, thank's !

[alxbilger]

Now the URL is generated automatically based on the namespace and class name. And interestingly, the website is able to find the right page even if the URL is not exact. For example:

• https://www.sofa-framework.org/community/doc/components/animationloop/freemotionanimationloop is converted automatically to https://www.sofa-framework.org/community/doc/components/animationloops/freemotionanimationloop/
• https://www.sofa-framework.org/community/doc/components/collision/detection/algorithm/bruteforcebroadphase -> https://www.sofa-framework.org/community/doc/components/collisions/broadphases/bruteforcebroadphase/
• https://www.sofa-framework.org/community/doc/components/collision/detection/intersection/minproximityintersection -> https://www.sofa-framework.org/community/doc/components/collisions/intersectiondetections/minproximityintersection/

[hugtalbot]

requires : https://github.com/sofa-framework/doc/pull/108