Setting GDALRaster.bands as a cached property was creating a circular
reference with objects having __del__ methods, which means the memory
could never be freed.
Thanks Daniel Wiesmann for the report and test, and Tim Graham for the review.
- Instantiation of GDALRaster instances from dict or json data.
- Retrieve and write pixel values in GDALBand objects.
- Support for the GDALFlushCache in gdal C prototypes
- Added private flush method to GDALRaster to make sure all
data is written to files when file-based rasters are changed.
- Replaced ``ptr`` with ``_ptr`` for internal ptr variable
Refs #23804. Thanks Claude Paroz and Tim Graham for the reviews.
Claude Paroz
Daniel Wiesmann