KeyWatcher SmartKey replacement

A replacement for the plastic SmartKey clamshell used in Morse Watchman KeyWatcher. Had one break at work so I grabbed the iButton out of it to make a replacement. I paused the print around 6mm to slip the iButton into the new print. The pocket on the original was much looser, and from what I've seen that's to allow for the chip to rotate as it is inserted and removed to "prevent wear". I made the pocket a little bigger on this version since the last one was a little snug, but haven't tested it out yet.