added acceleration mode for boat wave correction forces, default is force (old behaviour)
- lets us have consistent control forces on playerboats without worrying about mass differences
Update: convert IsBeingSpectated utility
- Updated dependent code to use new GetSpectators instead of old nested children approach
Tests: spectated player on craggy that shot scientists - headshot sounds replicated correctly to the spectator
Clean: remove BaseEntity spectating support and fix up types/names of relevant code
This code was broken for multiple years, and couldn't think of a reason it could be useful, so simplifying.
Tests: spectated on craggy, cycled view modes
Update: when spectated player disconnects, switch spectators to a new target
- this also fixes a leak of spectated players list, since it gets cleared by above action
Tests: flew out, disconnected - spectator returned to self. Reconnected, started spectating joined player - all replicated.
Update: reimplement spectating to use ISubscriptionStrategy instead of secondary groups
- Done via SpectatorSubStrategy (takes subscriptions of target) and SpectatedSubStrategy (notifies when group changes)
- Removed old secondary group code and reverted relevant Network API changes
- Made Networkable.OnSubscriptionChange public
This also fixes the bug with previous version that it only saw "near" distance entities
Tests: Spectated player on craggy, flew around until island disappeared from rendering - no NREs. Got 2 things to improve, and I think it's done
