Player life counters are separate.
When one player dies they lose a life and are turned into a bubble.
If the other player pops it, they are alive again.
If all players are bubbled, they get kicked out of the level.
If the bubbled player ran out of lives, they can not come back to life
until the level is over.
Whenever a level change happens, everyone's life count is set to a
minimum of two.
No game overs.
Took heavy inspiration from Kaze Emanuar
This allows clients to spawn a new sync object after the level loads and synchronize it.
Changed how un-initialized sync objects are detected
Koopa shells are the first thing to use this new system
Removed network_object_settings() command, instead explicitly setting the sync object parameters
