G2 support

src/core/LaunchOptions.lua

@@ -2,6 +2,7 @@
 --
 --   love . --game=red               -- boot Red
 --   love . --game=yellow --slot=2   -- boot Yellow on save slot 2
+--   love . --game=gold              -- boot Gold (src/core/Game2.lua)
 --   love . --game=red --launcher    -- open the launcher anyway (a shortcut
 --                                      the player wants to edit)
 --   POKEPORT_GAME=blue love .       -- same, for launchers that only pass env
@@ -37,6 +38,7 @@ local function normalizeVersion(v)
     r = "red", red = "red",
     b = "blue", blue = "blue",
     y = "yellow", yellow = "yellow",
+    g = "gold", gold = "gold",
   }
   v = alias[v] or v
   if GameVersion.VERSIONS and not GameVersion.VERSIONS[v] then return nil end