Bugfixes
#FIX: Fixed CorePlugins sometimes being reloaded twice.
#FIX: Fixed CorePlugins being initialized before all plugins have been reloaded during a reload operation.
Tweaks
#CHANGE: ContentRef.Is() methods cause loading content less often (due to missing Resource Type specifiers in file names).
CorePlugin API Tweaks
#ADD: Added CorePlugin.LoadPlugin method.
#CHANGE: Tweaked CorePlugin reload logging in the editor.