Editor and SDK Update: Unicode Text, Actor Inventory, Rooms, Outfits, Randomizer, UI Refinements, and Crash Fixes

[pavledev]

New Features

• Added UTF-8 text rendering support for 3D text.
• Implemented full actor inventory management in the Actors menu:
  • Display inventory items
  • Add and remove items
  • Select main weapon
• Introduced editor-style freecam setting with persistent checkbox state.
• Added new item-related structures and types:
  • SItemConfig
  • Extended ZItemConfigDescriptor
  • New ZHM5ItemWeapon class

Editor & UI Improvements

• Menus (Items, Actors, Debug Channels) are now independent of editor window visibility.
• Improved alignment and layout consistency across multiple UI sections.
• Enhanced InputWithAutocomplete:
  • Uses type registry directly
  • Supports optional filter callbacks
  • Updated documentation
• Actor selection UX improvements:
  • Automatic scrolling to selected actor
  • Contextual selection button in Entity Properties
• Reorganized and clarified CharSet Character Type controls.

Refactoring & Cleanup

• Refactored actor-related naming (NPC -> Actor) and internal fields.
• Replaced std::vector with std::unordered_set for m_PendingDynamicEntities
  and ensured proper cleanup when entities are deleted.
• Removed redundant prefixes and unused variables.
• Improved const-correctness and API clarity:
  • ZEntityImpl::GetID marked const
  • ZDynamicObject::ToString now takes a reference parameter

SDK / Engine-Level Changes

• Added Unicode-aware string handling and diacritic-insensitive search.
• Included missing headers and fixed dependency ordering.
• Adjusted virtual destructors where required for correctness.