Auto facettes, auto tags

[mastersign]

Generate facette values and tags automatically when certain conditions are met.

Examples:

• If facette host matches regex -production$ set facette environment to production
• If facette verb is install add tag setup

[mastersign]

Draft for configuration format:

auto:
  - match:
      mode: facette
      facette: host
      regex: '-production$'
    facettes:
      environment: production
  - match:
      mode: facette
      facette: verb
      value: install
    tags: ['setup']

[mastersign]

Counter proposal supporting multiple include and exclude patterns:

auto:
  - include:
      - mode: facette
        facette: host
        regex: '-production$'
    facettes:
      environment: production
  - include:
      - mode: facette
        facette: verb
        value: install
    tags: ['setup']

[mastersign]

implemented in 421b248