*added symbolic units for metric and customary. (EX m instead of metet)
*removed some "-" from body part descriptions that didn't make sense
*toggle units button now displays the correct units on start

Fixed Capitalization and Spacing of large scale approx units

Approx units had an issue with non stand pluralization, fixed, making them behave like all other units (ex 18 aircraft carrier being displayed as an aircraft carrier"

This reverts commit 5069a9809e.

added tooltips to difficulty(not displayed for some reason) , human prey, military, and magic

Using beds as a unit was originally to give something person scaled in the early game, however it was a clunky(non-intutive) unit, so I swapped it with people.

New units are {great wall of china, new york city, Australia, Earth, Sun, Milky Way, bed, panama canal,oil tanker} Chnged values for Shots and Glasses to be more accurate. Adjusted when units are changed on a majority of the Approximate units to prevent incorrect overaps, and make units change mroe naturally.