Fixes desyncs with rotating polyobjs

If you're looking to this commit to figure out what a hypothetical 1.7 should change, also increment MODVERSION - in this commit's case it was already incremented by another branch.

Adjusts pview_old for relative teleport to attempt a contigious motion

Make all the join/leave sound effects have a `singularity` of `true` so that they don't stack super loud during major net interruption or multiple splitscreen player joins.

Instead of not running for server or admin, run for ALL players, but only avoid *kicking* local or admin players.
Fixes a bug where having a non-interacting splitscreen player could take down your server.

Repaired performance regression under certain play conditions

Allows vid_wait to work under software without having to switch to OpenGL and then back

Just a weird, meaningless footgun waiting in the wings for someone to catch themselves on. D_StartTitle works plenty fine here!

- ALWAYS kick someone who's about to stop the server because they're about to overrun TICQUEUE, even if they're in the joiner grace period
- Reduce the joiner grace period for normal ping limit to 10 seconds (from 30)
- Properly account for ignoring all local players when the host is splitscreen

Clear and draw all game hud hook calls to 1 list

See merge request !318

(cherry picked from commit 7e17eb85)

2cffc9b4 Clear and draw all game hud hook calls to 1 list

Clear and draw all game hud hook calls to 1 list

See merge request !318

Fixes splitscreen issues with lua hud hooks

Ensure view interpolates between T-1 to T

See merge request !317

Ensure view interpolates between T-1 to T

See merge request !317

Fix use after free bug

See merge request !315

win32: Add dpi aware manifest config

See merge request !316

Fixes an issue where mobjs with shadows would never get freed,

See merge request !314

due to their reference count getting reset after
having their shadows spawned, resulting in a reference count of -1
and the mobj never being freed, or a use-after-free during the shadow's thinker.
Also adds some P_SetTargets to P_BlockThingsIterator to fix an inconsistency I noticed while investigating this.

Move globalweather to before P_SpawnSpecials so that specials can properly change weather and have it communicated in savegames

It's designed to be referenced from P_RunTHinkers, whjich we aren't doing

with precipitation mobjs on netgame load

Server browser technical and aesthetic improvements

See merge request !313

Speed up file loading on server join by splitting P_AddWadFile into stages

See merge request !295