Add LDtk level map parser to korge fleks gradle plugin

[jobe-m]

• This commit adds support of loading level maps from LDtk level map editor as either Tilemap object or as a chunk-mesh of level maps which are used for world level maps in Korge-fleks.
• When loading level maps as chunk-meshes entities will be parsed and prepared to be auto-spawned in the related world chunk.
• A level map of a world chunk consists of a stacked tile map which contains specific layers of each level map from LDtk editor.

[augmentcode]

🤖 Augment PR Summary

Summary: Adds LDtk level-map parsing/export to the Korge Fleks Gradle plugin to support both per-level TileMap exports and chunked world level-map generation.

Changes:

• Adds a tileMaps section to asset metadata and emits metadata as assets.json (configurable via assetInfoName).
• Refactors world-cluster asset tasks to queue tileset/LDtk inputs, run exporters, then build texture+tileset atlases and write metadata.
• Reworks AssetLevelMapExporter to export stacked tile maps and chunked world map JSON files under level_data/.
• Encodes chunk neighbor relationships for GridVania-like worlds and serializes entities + auto-spawn lists per chunk.
• Updates tileset atlas builder to accept a fixed amountOfTiles and adjusts how empty frames are represented.
• Updates Gradle DSL APIs (worldClusterAssets signature, adds worldLevelMapAssets with config block).
• Adjusts LDtk test resources and updates unit tests to use the new exporter constructor and TILE_MAPS output.

Technical Notes: Exported world chunks are written as compact JSON and tile IDs are bit-packed to include a small cluster index plus a masked tile id.

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[augmentcode]

Review completed. 5 suggestions posted.

Comment augment review to trigger a new review at any time.

[jobe-m]

augment review

[augmentcode]

Review completed. 5 suggestions posted.

Comment augment review to trigger a new review at any time.