Add core commands to manage alias

[GuillaumeFalourd]

What would you like to be added

• New commands to manage aliais (create, list, update, delete):
  • rit create alias
  • rit list alias
  • rit update alias
  • rit delete alias

Ex: The rit demo hello-worldcommand to run a formula could be executed by creating a helloworld alias.

Why is this needed

• To give more flexibility to the tool, and abstracting part of the alias management complexity on all supported OS.

Tasks

• Implemented and tested on Linux
• Implemented and tested on MacOS
• Implemented and tested on Windows