MiniHUD

• add: structuresRenderOutlines system from 1.21.11's codebase.
• add: Fix horse stats and add horse health stat info line by (Joel Young)
• update: Fix Centered Box size rounding and editor issue by (Jamo de Wit)
• restore: Optional vanilla debug render capabilities.

NOTE: That due to Vanilla changes; some debug renderers are being added/removed/changed -- this also means that the Servux debug_data protocol is obsolete since all you need now is OP privleges on any server to use these features.