feature-guidemo-SIR

This is a Chebgui demo to accompany my recent Example (not yet published).

Question for @asgeirbirkis — why did the demo not work when the variables were named `S`, `I`, and `R`, but then it worked when I renamed them `u`, `v`, and `w`? (See first commit / second commit.) I thought Chebgui was agnostic to variable names?