shinyFilesExample: Run a simple example app using the shinyFiles functionality
Description
When the function is invoked a shiny app is started showing a very simple
setup using shinyFiles. A button summons the dialog box allowing the user to
navigate the R installation directory. To showcase the restrictions parameter
the base package location has been hidden, and is thus inaccecible. A panel
besides the button shows how the user selection is made accessible to the
server after parsing with parseFilePaths
.