Mitigate problems for people who run without -n (#3916)

* CLI flag for forcing interactivity

* add --force-interactive

* Add force_interactive error checking and tests

* Add force_interactive parameter to FileDisplay

* add _can_interact

* Add _return_default

* Add **unused_kwargs to NoninteractiveDisplay

* improve _return_default assertion

* Change IDisplay calls and write tests

* Document force_interactive in interfaces.py

* Don't force_interactive with a new prompt

* Warn when skipping an interaction for the first time

* add specific logger.debug message

certbot/display/enhancements.py

@@ -48,7 +48,8 @@ def redirect_by_default():
 
     code, selection = util(interfaces.IDisplay).menu(
         "Please choose whether HTTPS access is required or optional.",
-        choices, default=0, cli_flag="--redirect / --no-redirect")
+        choices, default=0,
+        cli_flag="--redirect / --no-redirect", force_interactive=True)
 
     if code != display_util.OK:
         return False