added project argument to predict_tile for geo-coordinates

[musaqlain]

addresses Issue #608. Previously, predict_tile returned pixel coordinates even if the input was a georeferenced raster. This PR adds an optional project=False argument to allow users to request map coordinates directly.

• updated predict_tile in src/deepforest/main.py to accept project (bool).
• if project=True, the results are converted to a GeoDataFrame using utilities.image_to_geo_coordinates.
• added test_predict_tile_projected to tests/test_main.py to verify that setting project=True returns a GeoDataFrame with valid CRS and map coordinates (UTM).

Closes #608

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