Complete missing remapper documents

Description

Merge requests !2807 (merged) and !2824 (merged) documents the most important remappers. It would be nice to include ALL the remappers, though.

Requirements

  • In the 'Remappers' app, include the missing remappers

Missing documentation:

  • if
  • equals
  • gt
  • lt
  • not
  • match
  • array
  • date.add
  • date.format
  • date.now
  • date.parse
  • random.choice
  • random.integer
  • random.float
  • random.string
  • ics
  • null.strip
  • log

Missing/could be improved category descriptions (See !2976 (merged)):

  • Strings
  • Objects
  • Data
  • Conditionals
  • Dates
  • Randoms
Edited by Kees van den Broek