This solves two problems:
* The linked list is too slow, a map is better. A map cannot be used with statically allocated CVARs because order of initialization is undefined.
* The current CVAR system is an unordered mishmash of static variables and dynamically allocated ones and the means of identification are unsafe. With this everything is allocated on the heap so it can all be handled the same by the cleanup code.
* these circumvented all internal texture replacement logic. Texture objects should only be resolved right before drawing them
* added an explicit ‚tilebackground‘ option for the summary screen to fix problems with bad decision logic based on incorrect texture type checks. Automatic tiling no longer depends on texture type, but solely on size.
* added a DrawTexture variant that can be passed a texture ID instead of a pointer
src/common/console/c_console.cpp:1032:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/common/console/c_console.cpp:958:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/common/scripting/backend/codegen.cpp:2969:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/common/scripting/frontend/zcc_compile.cpp:2656:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/common/scripting/frontend/zcc_compile.cpp:521:5: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/common/scripting/jit/jit_math.cpp:966:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/d_main.cpp:1538:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/d_main.cpp:1549:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/d_main.cpp:3820:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/gameconfigfile.cpp:544:25: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/gamedata/p_xlat.cpp:193:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/gamedata/p_xlat.cpp:200:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/gamedata/p_xlat.cpp:210:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/g_game.cpp:1145:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/maploader/maploader.cpp:2142:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/menu/doommenu.cpp:159:28: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/m_cheat.cpp:109:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/playsim/mapthinkers/a_ceiling.cpp:254:24: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/playsim/mapthinkers/a_floor.cpp:322:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/playsim/mapthinkers/a_floor.cpp:330:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/playsim/mapthinkers/a_floor.cpp:344:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/playsim/mapthinkers/a_plats.cpp:129:47: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/playsim/mapthinkers/a_plats.cpp:284:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/playsim/p_acs.cpp:6302:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/playsim/p_acs.cpp:8111:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/playsim/p_spec.cpp:344:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/scripting/decorate/thingdef_parse.cpp:1343:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/scripting/zscript/zcc_compile_doom.cpp:298:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
src/wi_stuff.cpp:463:14: warning: this statement may fall through [-Wimplicit-fallthrough=]