Feature: Notebook Editor, Interactive Window, Python Editor cells
Description
It would be nice to have a command to clear text in the Interactive Window text entry box. This could then be bound to a keyboard shortcut. Many REPLs clear text like this if the user presses Esc or Ctrl-C. (IPython uses Ctrl-C.)
To be clear, I'm not talking about clearing existing cells - see picture below.

Thank you!
Microsoft Data Science for VS Code Engineering Team: @rchiodo, @IanMatthewHuff, @DavidKutu, @DonJayamanne, @greazer