Install ZSH and Oh My ZSH on macOS

• Medium.com - Clovis.pro: Configuration of a beautiful (efficient) terminal and prompt on OSX in 7minutes
  • Note: I have installed the complete Powerline font set by cloning the Github powerline / fonts and following the installation instructions. Then I was able to select Meslo LG M Regular for Powerline in the iTerm2 Settings

Actually, the following is not needed and kept here as a backup:

• Stackoverflow: Change default terminal app in Visual Studio Code on Mac