feat(pipeline): add Wowee Open Weather (.wow) zone schedule

8th open-format addition to the Wowee pipeline. Replaces
WoW's WeatherTypes.dbc / WeatherEffect logic with a single
binary file holding a list of weather states for one zone,
each tagged with intensity bounds, a probability weight,
and duration bounds. The renderer / runtime samples one
entry at a time using weighted-random selection, drives
it for a uniform-random duration in [min, max] sec, then
re-rolls.

  • Types: Clear / Rain / Snow / Storm / Sandstorm / Fog /
    Blizzard (extensible enum).

  • Binary format: magic "WOWA", version 1, name, N entries
    each storing (typeId, minIntensity, maxIntensity, weight,
    minDurationSec, maxDurationSec).

CLI:
  • --info-wow <wow-base> [--json] — inspect a WOW
  • --gen-weather-temperate — clear + rain + fog (forest)
  • --gen-weather-arctic    — snow + blizzard + fog (tundra)
  • --gen-weather-desert    — clear + sandstorm (dunes)
  • --gen-weather-stormy    — rain + storm + occasional clear

The 8th open format complementing the rest:
  M2 → WOM | WMO → WOB | WMO collision → WOC | ADT → WOT
  DBC → JsonDBC | BLP → PNG | Light.dbc → WOL | WeatherTypes.dbc → WOW

Smoke-tested all 4 presets + JSON output. Each preset reads
back identically with the expected entry count and weight
distribution.

tools/editor/cli_arg_required.cpp

@@ -17,6 +17,8 @@ const char* const kArgRequired[] = {
     "--info-wob", "--info-wob-stats", "--info-woc", "--info-wot",
     "--info-wol", "--info-wol-at", "--validate-wol", "--gen-light",
     "--gen-light-cave", "--gen-light-dungeon", "--gen-light-night",
+    "--info-wow", "--gen-weather-temperate", "--gen-weather-arctic",
+    "--gen-weather-desert", "--gen-weather-stormy",
     "--info-creatures", "--info-objects", "--info-quests",
     "--info-extract", "--info-extract-tree", "--info-extract-budget",
     "--list-missing-sidecars",