Merge remote-tracking branch 'public-gitlab/next' into addons-backport

CMakeLists.txt

SRB2.cbp

appveyor.yml

bin/Resources/i686/exchndl.dll

libs/DLL-README.txt

libs/dll-binaries/i686/Old/fmod.dll

libs/dll-binaries/i686/Old/fmodexL.dll

libs/dll-binaries/i686/Old/libgcc_s_dw2-1.dll

libs/dll-binaries/i686/Old/libintl-8.dll

libs/dll-binaries/i686/exchndl.dll

libs/dll-binaries/i686/fmodex.dll

libs/dll-binaries/i686/libgme.dll

libs/dll-binaries/i686/mgwhelp.dll

libs/dll-binaries/x86_64/Old/fmod64.dll

libs/dll-binaries/x86_64/Old/fmodexL64.dll

libs/dll-binaries/x86_64/exchndl.dll

libs/dll-binaries/x86_64/fmodex64.dll

libs/dll-binaries/x86_64/libgme.dll

libs/dll-binaries/x86_64/mgwhelp.dll

src/CMakeLists.txt