Fix -Wnon-literal-null-conversion and -Wconstant-conversion warnings

See merge request !1929

Fix IT and ctf flag sign interpolation

See merge request !1939

Re-add code that sets MF2_AMBUSH if MTF_AMBUSH is set, but only for binary maps

Closes #958

See merge request !1937

Linedef type 14 UDMF conversion: Don't fill stringargs[0] if toptexture is empty

Closes #973

See merge request STJr/SRB2!1936

Move emblem float option to args[1], since args[0] is already occupied for NiGHTS emblems

Closes #963

See merge request STJr/SRB2!1935

Deprecated map effect stuff

Closes #956

See merge request STJr/SRB2!1933

Fixes Issue #711

See merge request !1907

Fixes issue #568

Closes #568

See merge request !1913

Fixes Issue #912

Closes #912

See merge request !1909

Fix wrong flag being checked in P_ProcessTeamBase

Closes #957

See merge request !1938

-Add missing unsupported effect warnings to P_WriteTextmap
-Apply spikes MSF_TRIGGERSPECIAL_TOUCH hack in UDMF too

fix ARM builds being completely broken

Conditionally adds -mno-ms-bitfields based on architecture, as this is
only relevant on Intel architectures.

https://github.com/STJr/SRB2/pull/514

If merged, this is the quickest approach to resolve https://github.com/STJr/SRB2/issues/513

...alternatively, we could just remove the option altogether but I don't have the time right now to test whether it's needed or not

To the best of my knowledge, this covers all possible amd64 `CMAKE_SYSTEM_PROCESSOR` values based on what I'm seeing at https://stackoverflow.com/questions/70475665/what-are-the-possible-values-of-cmake-system-processor

Change gamepad defaults for 2.2.11

Closes #813

See merge request !1928

EV_DoFloor: Set dummy tag correctly for chained linedef executing

Closes #932

See merge request !1898

Re-add P_ThingOnSpecial3DFloor for Lua backwards compatibility

See merge request !1905

UDMF: Use string values for the sector "triggerer" field

See merge request STJr/SRB2!1902

Disable exit sectors in non-NiGHTS special stages because they interfere with the pits

Closes #930

See merge request STJr/SRB2!1900

Revert Gamepads for now

See merge request !1926

Handle splitscreen lua hud lists separately

Closes #935

See merge request !1925

Invert OpenGL rollangle for papersprites to match software renderer behaviour

Closes #849

See merge request !1924

Minor interpolation fixes

Closes #900, #906, and #916

See merge request !1923

This reverts commit 696e2ab9, reversing
changes made to d98d5949.

This reverts commit 7f1cafcd, reversing
changes made to 696e2ab9.