Clears the Workspace (Mise en Place)
Description
Clears the workspace. Useful for the beginnings of R scripts, to
avoid potential problems with accidentally using information from variables
or functions from previous script evaluations, too many figure windows open
at the same time, packages that you don't need any more, or a cluttered
console. Uses code from various StackOverflow users. See help(mise) for
pointers to the relevant StackOverflow pages.