Don't give completion emblems when getting a game over in multiplayer (or any other kind of level reset)

Previously, level select only appeared in the SP pause menu if you load a complete save file.

Now, entering the game through an Extras menu level select shows that level select. Simply makes it more convenient, as you don't need to exit to the main menu again whenever you want to get to another level from an unlocked level select.

Tested all ways you can start a new map from the menu that I can think of (New Save File, Complete Save File, Mid-game Save File, several different Level Select types, custom Warp, Record Attack, Marathon, Tutorial), and could not smuggle wrong level selects into any.

This makes it consistent with SP's pause menu order. (Although admittedly I prefer how the other order looks.)

(Maybe some day...)

Currently, emblems share with everyone. Will add an option to toggle this.

Fix segfault when P_RemoveMobj is called within A_FaceTarget action

See merge request STJr/SRB2!1974

Allow targeting invulnerable bosses & don't break targeting when they take damage

See merge request STJr/SRB2!1917

Reallow score chains from rolling

See merge request STJr/SRB2!1833

Interpolate console animation, Make con_height update on the fly

Closes #905

See merge request STJr/SRB2!1878

When attaching to a wall to do a climb, the second sidedef wasn't be handled properly.

Closes #834

See merge request STJr/SRB2!1908

Fix segfault when Crushstaceans hit a player with Armageddon shield

See merge request STJr/SRB2!1980

Fix I_GetFreeMem for 64-bit platforms

See merge request STJr/SRB2!1982

Fix segfault when shields are removed after thinking

See merge request STJr/SRB2!1975

Fix segfault when going up steep slopes in rare cases

See merge request STJr/SRB2!1978

Fix linedef action 420 being unable to lower light levels properly by default

See merge request STJr/SRB2!1977

Don't attract bomb spheres with Attraction shield

See merge request STJr/SRB2!1953

Allow Cosmetic Add-Ons Mid-Save

Closes #911

See merge request STJr/SRB2!1877

Plane scroller & wind/current/pusher improvements (again)

See merge request STJr/SRB2!1811

Turn dispoffset into a mobj field

See merge request STJr/SRB2!1708

[SUGOI] Refresh Sprite2s

See merge request STJr/SRB2!1750

[SUGOI] Allow saving in modified games.

See merge request STJr/SRB2!1749