CAMPA Meeting Notes 31/3/2021: New Fields

[ax3l]

• add historic codes (consensus: yes), e.g. filter tag "active" or "last update(d)" field
  • last commit/release badge (open source or unknown)
  • add field: legacy true/false
• install link (e.g. package manager list, etc.)
• maintainer field (w/o e-mail?) -> our existing homepage might be more scalable, see discussion in Snowmass Meeting Notes: 05/26/2021 #29
• platforms: linux/macos/win Add Platforms (Linux/Mac/Windows) #22 Homepage: Filter Platform #27