List localization

[sowelipililimute]

• pull list data from unicode CLDR JSON
• implement CLDR list formatting and gender
• new localization functions: COUNT(), LIST(), and RECIPROCAL()
  • COUNT() is the list count
  • LIST() formats the list according to the message locale, provided type, width
    • wrapper allows items to be wrapped in extra formatting without losing list gender data and is also just syntax sugar for a common pattern
  • RECIPROCAL() formats a reciprocal/reflexive pronoun for the provided entity or list thereof, i.e. Alice hugged herself and Alice and Maria hugged each other
• this PR is 50% tests by weight
• also https://github.com/Ygg01/Linguini/pull/60 is needed for COUNT to work properly with selectors, an xfail test is provided for this

[PJB3005]

also https://github.com/Ygg01/Linguini/pull/60 is needed for COUNT to work properly with selectors, an xfail test is provided for this

It's currently impossible to update Linguini until https://github.com/Ygg01/Linguini/issues/62 is fixed, fyi.