Add scaffoliding functions to the CLI

[pfiaux]

The goal would be that after installing the CLI into a development repository (or using it globally) it could be used to scaffold a basic SDK Driver without having to copy/paste modify code.

The initial target would be to setup a new driver easily and quickly:

neeo-cli init

Then prompt

• Device name (text input)
• Type (list)
• Manufacturer (text input)
• Button or button group (at least 1 control is needed for a valid driver)
  • Button name (text input)
  • Button label (text input)
  • Add another button (yes/no)
• Nice additional options
  • Discovery (yes/no)
  • Notifications (yes/no)
  • Device subscription (yes/no)
  • Capabilities (list)

Then it would prompt some questions and generate a skeleton index and controller with the basic type, name and such.

[pfiaux]

Recently @Shepless implemented a prototype cli in https://github.com/Shepless/neeo-cli using inquirer