scaffolding

As per: https://www.npmjs.com/package/hardhat-interface-generator
This package takes an specified contract and generates an Interface contract automatically.

Add the package and create a yarn command for convenience.

This issue is tracking the documentation that has to be updated.

• Document new platform commands
• Update the section dedicated to page <title> and tell about [Browser.documen

Is your feature request related to a problem? Please describe.

Visual clutter is apparent in "Overwrite <...> ? [Y/n]" questions (in copier 6.0.0a6).

PS> copier

🎤 name? Format: str my_name2
 identical  .
 identical  .gitignore      
 identical  LICENSE
  conflict  README.md       
 Overwrite README.md? [Y/n]                <<< This could look better with a newline just befor