Alternative way to extract & run OSX Installer on 10.15

[edalquist]

I can't use the "extract safe downloads" feature in Safari due to device policy. I found this alternative that works:

1. Download .zip file in chrome
2. Open a terminal $ cd Downloads
3. Extract $ unzip ParticleWorkbenchInstaller.zip
4. Run $ open ./Particle\ Workbench\ Installer.app