Add parameters to GDAL writer for consistent DTM creation

[tvanderweide]

For the 2026 season I'd like to use a consistent/static GRID pattern when creating a DTM instead of relying on the automatic bounds. This means adding some OPTIONAL parameters to the gdal.writer potion of the pipeline.

{
                "type": "writers.gdal",
                "filename": str(out_tif),
                "gdaldriver": "GTiff",
                "gdalopts": GEOTIFF_GDALOPTS,
                "output_type": "idw",
                "resolution": resolution,
                "radius": radius,
                "power": power,
                "origin_x": origin_x,
                "origin_y": origin_y,
                "width": width,
                "height": height,
                "nodata": NODATA
            }

where, GEOTIFF_GDALOPTS = "compress=lzw,tiled=yes"
and the resolution, radius, power, origin_x, origin_y, width, and height are explicitly defined and loaded from a JSON (attached).

master_grid.json