CMake: multiple improvements for builds and project generation

- Change default build output directory name from "build" to "bin"
- Implement new function vcmi_get_cmake_debug_info
- Link client with SDL2main on Windows and disable debug console
- Remove all old MinGW-specific options since they outdated and MXE work fine
- Set AUTOGEN_TARGETS_FOLDER for better Xcode and Visual Studio projects
- Remove useless vcmitestFiles custom target for less garbage in project files

client/CMT.cpp

@@ -219,9 +219,10 @@ static void SDLLogCallback(void*           userdata,
 	logGlobal->debug("SDL(category %d; priority %d) %s", category, priority, message);
 }
 
-#if defined(VCMI_WINDOWS) && !defined (__GNUC__)
-int wmain(int argc, wchar_t* argv[])
-#elif defined(VCMI_APPLE) || defined(VCMI_ANDROID)
+//#if defined(VCMI_WINDOWS) && !defined (__GNUC__)
+//int wmain(int argc, wchar_t* argv[])
+//#el
+#if defined(VCMI_APPLE) || defined(VCMI_ANDROID)
 int SDL_main(int argc, char *argv[])
 #else
 int main(int argc, char * argv[])

client/CMakeLists.txt

@@ -133,6 +133,7 @@ if(WIN32)
 			OUTPUT_NAME "VCMI_client"
 			PROJECT_LABEL "VCMI_client"
 	)
+	target_link_libraries(vcmiclient ${SDLMAIN_LIBRARY})
 endif()
 
 target_link_libraries(vcmiclient vcmi ${Boost_LIBRARIES} ${SDL_LIBRARY} ${SDLIMAGE_LIBRARY} ${SDLMIXER_LIBRARY} ${SDLTTF_LIBRARY} ${ZLIB_LIBRARIES} ${FFMPEG_LIBRARIES} ${FFMPEG_EXTRA_LINKING_OPTIONS} ${SYSTEM_LIBS})