Catalyst 2 API C++: Documentation and architecture

[nicolas.vuaille (Nicolas Vuaille (Kitware))]

Also, I just created this tip based on our discussion. Feel free to add some feedback from your experience!

How to try out Catalyst2

Catalyst is an in-situ framework created as a part of ParaView a few years ago. With time and use, we saw the different drawbacks of our approach and then it was decided to create a new architecture, Catalyst2 With this new implementation, it is: easier to implement in your simulation (less knowledges required) easier to update from a version to another (less dependencies, binary compatibility) possible to activate Steering mode, where ParaView can modify simulation parameters at runtime A…