excaliburjs / Excalibur / 6359066919

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fix: [#2763] TileMap Improve perf and draw tiles using QuadTree (#2771)

Closes #2763

## Changes:

- Updates TileMap to use a QuadTree spatial data structure to identify the tiles that need to be drawn
- Accidental perf improvement! It is now much more efficient to locate the proper tiles
  - This is especially noticeable on FireFox with bigger tile maps (test this PR with npm link against https://github.com/excaliburjs/excalibur-tiled/)

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