Add support to load Sirius models containing representations other than diagrams (ie. Table, ...)
(Actually, ignore other representations as we don't know how to animate them)
Fix animation layer activation on startup. The layer was not correctly detected as activated ( need to consider both diagram.getActivatedLayers() and diagram.getActivatedTransientLayers() )
Description
Contribution to issues
Fixes https://github.com/eclipse/gemoc-studio-modeldebugging/issues/197