feat(match2): use ffa base ms on starcraft(2)

[hjpalpha]

ready for review but not for merge!

Summary

Use the FFA MS Base Module in the sc(2) ffa display.

• make columns in the base ffa ms customizable via a parser
• adjust brkts/wikispecific on both sc and sc2 to use horizontallist for ffa matches and "redirect" Module:MatchSummary/Ffa to the one on commons
• add a match schedule widget to be used if dates of all games of a match and the match are the same
• kick the sc(2) singlematch overwrite (not needed anymore)

before merge but after approval

• switch single ffa matches to bracket/2 (~100 usages, several can be bot edited)
  • list of pages with ffa matches
  • bot run to catch most: python pwb.py replace -lang:starcraft2 -transcludes:SingleFFAMatch -regex "\{\{[sS]ingleFFAMatch" "{{Bracket|Bracket/2" -summary:"prep ffa matches"
  • after the bot run kick the redirect from Template:SingleFFAMatch to Template:SingleMatch on sc2
• improve the error on single match for ffa stuff (not intended to be used!)
  • possibly let single match template set a value that indicates it is a single match so we can just let it error in input processing already

How did you test this change?

https://liquipedia.net/starcraft2/User:Hjpalpha/wip15

[hjpalpha]

@Rathoz
what do you think of

together with

to ensure that on sc(2) ffa stuff is not used in combination with SingleMatch

it errors anyways, so my idea was to improve the error message

[Rathoz]

[hjpalpha]

[hjpalpha]

2. done
3. not showing placement points at all (they do not exist, there are only (sometimes) general map points, unrelated to the placement the opponent made in that map, usually the placement is rather determined from the points if they exist at all)

[hjpalpha]

still to do: port id stuff to widgetContexts