Hitchhiker's Guide 42 Life, the Universe, and Everything baseplate

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4459852.

Changed the plaque so that it says 'Life, the Universe, and Everything' and has the Hitchhiker's Guide to the Galaxy symbol. Added a very shallow indent with more than enough tolerance so that the 42 sits in place and doesn't move around on the baseplate too much.