Add protect() method to do the inverse of clip(). Need a list of clip/protect paths instead of just a single path so that we preserve the inside/outside-ness of each path.
Add protect() method to do the inverse of clip().
Need a list of clip/protect paths instead of just a single path so that we
preserve the inside/outside-ness of each path.

simoc/mapyrus,simoc/mapyrus,simoc/mapyrus