No there is not, as any widget can have whatever resources it wants to use, and you can always edit a widget to define and consume more resources at any time.
If you want to see a list of all resources being used by all widgets at once, you can export all resources on the "Manage Widgets" page by selecting all widgets and then clicking "Export Resources". You can of course filter the list of widgets you're selecting to only factory default versions too at the top of the page.