Replace WINDOWS with WIN32 in CMakeLists.txt (#1059)

Fix Python3 callbacks (#1058)

Gui/DopeSheet: add parent QModelIndex

Change tools/utils/sourceList.py to always output posix paths.

Fix GMIC DLL dependencies in Windows Installer build

Gui/TimeLineGui: set bold text (#1051)

Fix Windows build by adding llvm-tools dependency.

Fix ImageMagick package build errors.

Refactor natron build deps packages to work with Qt5 & Qt6

Introduce QtCompat::QEnterEvent so enterEvent() overrides build on Qt5 & Qt6

Remove QTextCodec usage

Fix deprecated Qt constants (#1041)

C++17 fix

build system fixes

fix case of PySide2_Gui_Python.h for case-sensitive filesystems