Data Bars: show rank and notes on the guild tooltip, sorted by rank

[austinscantland]

What does this PR do?

The guild Social & Guild Tooltip (already opt-in, default off) now lists online members by rank index, Guild Master first, with aligned rank and public-note columns beside the zone.

How was it tested?

Code review against .github/CONTRIBUTING.md. Please hover the databar guild button in-game with Social & Guild Tooltip enabled and attach a screenshot.

Screenshots

Before

After

Checklist

• New settings default OFF (N/A: no new setting; only the existing Social & Guild Tooltip, which already defaults off)
• Zero cost while disabled: no events registered, no polling, no hooks doing work, no frames built
• Cheap while enabled: event-driven (no polling, no timer-based logic, no per-frame allocations)
• No writes onto Blizzard-owned frames (weak-table pattern used); HookScript/hooksecurefunc only, never SetScript on Blizzard frames
• Tested in-game on live; no version gates or pre-Midnight APIs added

Contact Info

• Discord: espyr

[austinscantland]

Closing in favor of #2085, which is the same guild databar tooltip work reopened from feat/databar-guild-tooltip-rank-notes (this branch was misnamed future/).