Open URLs in user's browser from tool sessions
We should implement a method to open URLs directly in a user's browser when they click on a link inside a tool.
Use case: Joe needs to refer to a tool's wiki. The tool's UI opens the wiki in the user's browser, or plays YouTube videos directly in the user's browser.
It would be terribly inefficient to watch a youtube video from within a tool session, through VNC, and would likely cause poor user experiences.