New food and drink entities

New food and drink entities, an experimental radio, hunger, thirst,
player classes, a moneysystem, and other stuff I can't think of right
now.
Fixed some bugs and open ended code

fixed some open ended stuff and fine tuned some stuff
Added clientside folder for clientside lua files

Added clientside folder for clientside lua files
finally added the missing convar to gamemode.txt
Merge branch 'master' into experimental
Merge branch 'master' into experimental
Merge branch 'master' into experimental
Merge branch 'master' into experimental
Merge branch 'experimental' into master