- Simplify queue handling, FIFO retry for ents not created due
to world not loaded.
- Make ents responsible for own attachment, to reduce the chance
of non-attachment due to out-of-order replication.
- Unify config object passed to ents, allowing ents to self-manage
more.
There is some wierd issue in 5.0+, besides the different model
coordinate system. If I try to create and attach all ents in the
very first tick on player join, only like 3 of them work. Queue
them up and apply them gradually, one per world tick, to try to
work around this. Need to figure out what limitation I'm hitting
that's causing this...
