Rewrite organization of proxy dependencies and topic subscriptions in PointCloudViewer
Complete rework of organization of providers, their proxy dependencies and topic subscriptions. This will prevent plugin crashes due to providers connecting, disconnecting and reconnecting and will automatically remove any dependency, topic subscription and occurrence in the graphical user interface if a provider is not available.
It will also fix the save dialog. See issue #4 (closed).
Make sure you got the up to date version of ArmarXCore as this is using new features provided in the latest commits.
This is going to fix issue #3 (closed) and #4 (closed).