gmod_game: Set the toybox ID on spawned entities

Revision 877
Set the toybox ID on spawned entities
You can prevent certain entities from saving with ent:SetShouldToyboxSave( false )
Changed Files:
[ul]
[li]trunk/gamemodes/sandbox/gamemode/commands.lua[/li][li]trunk/lua/includes/gmsave/entity_filters.lua[/li][/ul]
Committed By Garry Newman