Add lmms-console.exe

[tresf]

Adds a new lmms-console.exe target for Windows builds that will allow --help, --version.

• The existing lmms.exe leverages WinMain() entry point making certain console interactions on Windows not possible.
• Since Run without terminal for non-debug Windows builds #7022 (comment) this console behavior can be toggled on, but only for Debug builds.
• This change affects all Windows builds by:
  • Make the default lmms.exe to always use WinMain() entry points
  • Builds a second lmms-console.exe to always use main() entry point
• This new lmms-console.exe can be leveraged as a CLI interface on Windows, similar to other platforms.

"C:\Program FIles\LMMS\lmms-console.exe" --help

TODO:

• Fix segmentation fault when rendering a project, it's mangling lmms-console.exe with lmms.exe.

   gdb '/c/Program Files/LMMS/lmms-console.exe'
  Thread 1 received signal SIGSEGV, Segmentation fault.
  0x00007ff7c74c4524 in lmms!? 
  qt_static_metacall@MidiClip@lmms@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z () from /c/Program Files/LMMS/lmms.exe
  (gdb) bt full
  #0  0x00007ff7c74c4524 in lmms!? 
  qt_static_metacall@MidiClip@lmms@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z ()
     from /c/Program Files/LMMS/lmms.exe

Inspired by #7427
Keywords: -mwindows, -mconsole, WIN32_EXECUTABLE