Added custom resolver to PluginHost. Started ObjectExplorer projects.
Moved from default to a custom PluginCreator.
ObjectExplorer: Replaced WPF host by console demo.
Simple graph attempt.
Fixed missing services/AOOB.
ObjectExplorer: Removed console demo. Now explicitly requires a WPF context.
Stopping a IYodiiEngine should disable all plugins.
Merge pull request #1 from bcrosnier/f-object-explorer

ObjectExplorer & Changes to PluginHost/Engine