Cosa è cambiato in EDuke32, build per build

Amend r6150.

Another attempt at fixing Polymost z-fighting. Probably still sucks! :)

Fix window title in EDUKE32_STANDALONE builds. DONT_BUILD.

Minor optimization

Change savegame filenames from dukesav#.esv to save#.esv.

The most minor of minor optimizations. DONT_BUILD.

Fix missed label for sectoreffector tag. DONT_BUILD.

fix texture panning floatiness on slight slopes

Changes to build as C++: Apparently an extern declaration must be present for the compiler to expose the symbols of struct objects.

Changes to build as C++: pointer casting

Changes to build as C++: Structs within other structs cannot be referred to by just the innermost name, and the using keyword does not work either. Split them out into the top level.

Changes to build (in C mode).

Add libxmp-lite, replacing static linking to a library that was uncommon in Linux and Mac package managers.

Add unmodified libxmp-lite sources from its Git repository.

Add LPeg sources, replacing the haphazard static linking that required a custom-built library in a hardcoded location.

Necessary changes for building in our environment and with our project. See lpeg-lunatic.patch.

Add unmodified sources for LPeg 1.0.1.

Move the ENet group up into a new section for libraries that are not ours but included in our repository.

Remove manual assembly of object file lists and replace it with a system for tracking dependencies between groups.

Rename some groups so that the part before the first _ corresponds to the parent group that has _SRC and _OBJ defines.

Remove $(LUNATIC_LUA_PREFIX).

Move duke3d and engine directory definitions to their proper spots, as they no longer need early definition after the great repository rearrangement.

Update heading comments.

Remove printing of compiler/assembler/linker options at build start. Use PRETTY_OUTPUT=0 if you need that information.

Common.mak: Massive reorganization/cleanup.

Add perl.exe.stackdump to .gitignore.

Rename savegame.lua to lunasave.lua to avoid a collision with savegame.cpp. DONT_BUILD.

Fix an extern "C" that was collateral damage in the last push. Fixes Lunatic build. DONT_BUILD.

Fix interpolation of sprites in sectors with SE_31_FLOOR_RISE_FALL

Reduce max number of concurrent copies of the same sound from 8 to 4.

Fix https://forums.duke4.net/topic/9285-con-compiler-bug/page__pid__276767

Amend r6126, which doesn't leave "eduke32" defined anywhere for binary names when APPBASENAME is not specified.

Amend r6122, as of r6074 all standard library header inclusion is routed through compat.h.

Recognize MacUser shareware demo; data must be renamed from "Duke3D Group" to "duke3d.grp".

Base output binary name on APPBASENAME. DONT_BUILD.

Potential slight optimization to actor movement.

EDUKE32_STANDALONE improvement. DONT_BUILD.

Save and restore music position when changing to a map with the same music defined. DONT_BUILD.

Remove obsolete header standard.h. DONT_BUILD.