2.3.3 macOS

Thanks to @valentingorelov, we now have macOS support.

In first time build:

git clone --depth=1 https://github.com/lcgamboa/picsimlab.git 
cd picsimlab 
bscripts/build_all_and_install_macos.sh 
bscripts/make_macos_bundle_and_dmg.sh

To recompile use:

make -j4