Added ar_test from project doc
Changed to accept credentials from file redirect
Added from online project doc
Exec bit and prompt for passwords from user
Added basework for tables
Added rough ability to list each object
Show machines now shows id and building
Added machine count info to building list
Find snacks working well
Added ability to add snacks
Added snacks validation for calories being positive
Added some more validations
Added option to hide password on io prompt
Merge branch 'development'