Create branch for latest release

[ChemicalXandco]

I highly recommend that documentation be managed properly regarding how to update the documentation if the changes do not apply to the release version of meshroom. I suggest that here should be 2 versions of the documentation: release and develop. This way the documentation can be updated with the new features and changes before they are in the release version while also having the correct documentation for the current release. Corrections and improvements should target the release branch and then it will also be merged into the develop branch, possibly by using Nightly Merge github action for example. Documentation of new features/changes should target only the develop branch.

[natowi]

At the moment there is enough work in catching up to the latest release :D

Idea: Features not yet available could be commented out.