Cesium for Unreal v2.21.0

This release includes support for Unreal Engine v5.4, v5.5, and v5.6 for Windows, Linux, macOS, Android, and iOS. Please select the appropriate ZIP for your version.

• Unreal Engine 5.4: CesiumForUnreal-54-v2.21.0.zip
• Unreal Engine 5.5: CesiumForUnreal-55-v2.21.0.zip
• Unreal Engine 5.6: CesiumForUnreal-56-v2.21.0.zip

Additions 🎉

• Added CesiumAzureMapsRasterOverlay.
• Added the interface ICesium3DTilesetLifecycleEventReceiver: when an implementation is registered on a tileset (with ACesium3DTileset::SetLifecycleEventReceiver), its functions will be called at various points in a tile's lifecycle, like when a mesh component is created, when a material is instanced, when the tile changes visibility, when it is unloaded, etc.

Fixes 🔧

• Fixed a bug where CesiumCreditSystem would not filter out empty credits, resulting in duplicate on-screen delimiters.
• Fixed a problem where multi-selecting UCesiumGlobeAnchorComponent could cause the selected components to teleport to 0 degrees longitude and 0 degrees latitude. Now, the geospatial position and orientation fields are hidden while multi-selecting.

In addition to the above, this release updates cesium-native from v0.52.0 to v0.53.0. See the changelog for a complete list of changes in cesium-native.