Add CV_SAVE to netvars

dumpconsistency
allowjoin
joinnextround
restrictskinchange
allowteamchange
startinglives
respawndelay
competitionboxes
allowseenames
matchboxes
specialrings
powerstones
countdowntime
touchtag
hidetime
autobalance
teamscramble
scrambleonchange
friendlyfire
overtime
pointlimit
timelimit
basenumlaps
allowexitlevel
inttime
coopstarposts
cooplives
advancemap
playersforexit
exitmove
pausepermission
respawnitemtime
respawnitem
flagtime

tv_recycler
tv_teleporter
tv_superring
tv_supersneaker
tv_invincibility
tv_jumpshield
tv_watershield
tv_ringshield
tv_forceshield
tv_bombshield
tv_1up
tv_eggmanbox