Resize Plastic Pants

[DoomRater]

Currently the plastic pants size is hard coded, but the user should be able to resize them to whatever and have the scripts remember that. What's nice about the plastic pants is that they're their own prim and the description field of that prim can house the saved size, be it a percentage of the original or an absolute value.

[DoomRater]

Looks like we have a more serious bug- resizing the main prim doesn't trigger the diaper to properly update the plastic pants, reqiring a reset of the preferences script. Odds are the preferences script isn't checking for prim resizes like it should be, which menu did.