feat(pipeline): add Wowee Open Light (.wol) atmosphere format

New open replacement for WoW's Light.dbc / LightParams.dbc /
LightIntBand.dbc / LightFloatBand.dbc stack — a single .wol
file holds a list of time-of-day keyframes for one zone,
each capturing the ambient + directional + fog state at that
moment. The renderer interpolates between adjacent keyframes
by time-of-day.

Binary layout:
  magic[4] = "WOLA", version (uint32),
  nameLen + name bytes,
  keyframeCount + keyframes (each 13 floats + 1 uint32 time)

Per keyframe:
  • timeOfDayMin (0..1439 = minutes since midnight)
  • ambientColor.rgb, directionalColor.rgb, directionalDir.xyz
  • fogColor.rgb, fogStart, fogEnd

CLI:
  • --gen-light <wol-base> [zoneName] — emit a starter file
    with 4-keyframe day/night cycle (midnight/dawn/noon/dusk)
    using reasonable outdoor defaults
  • --info-wol <wol-base> [--json] — inspect: zone name +
    per-keyframe time-of-day + colors + fog distances

The 7th open-format addition to the Wowee pipeline:
  M2  → WOM (model)
  WMO → WOB (building)
  WMO collision → WOC
  ADT → WOT (terrain)
  DBC → JsonDBC
  BLP → PNG
  Light.dbc family → WOL  ← new

Smoke-tested round-trip: gen → info shows correct 4 keyframes
at 00:00 / 06:00 / 12:00 / 18:00 with the canonical color
ramps. JSON output for tooling integration.

tools/editor/cli_arg_required.cpp

@@ -15,6 +15,7 @@ const char* const kArgRequired[] = {
     "--list-zone-meshes-detail", "--list-project-meshes-detail", "--info-mesh",
     "--info-mesh-storage-budget", "--info-mesh-stats",
     "--info-wob", "--info-wob-stats", "--info-woc", "--info-wot",
+    "--info-wol", "--gen-light",
     "--info-creatures", "--info-objects", "--info-quests",
     "--info-extract", "--info-extract-tree", "--info-extract-budget",
     "--list-missing-sidecars",