[GH-3330] Preserve other raster bands when replacing NoData

[jiayuasu]

Did you read the Contributor Guide?

Yes, I have read the Contributor Rules and Contributor Development Guide.

Is this PR related to a ticket?

Closes #3330.

What changes were proposed in this PR?

RS_SetBandNoDataValue(raster, band, value, true) creates a new writable raster when replacing existing NoData samples. Previously, it filled only the selected band, leaving every other band's pixels at zero.

Copy the source raster into the new raster before replacing the selected band's samples. This preserves the other bands and leaves the source unchanged.

How was this patch tested?

The new Java regression fails without the fix. It covers all six pixel types and each target band in a three-band raster, checking all pixel values, NoData values, grid geometry, data type, and source preservation. A SQL regression also checks fractional samples and materialized raster serialization.

On Java 11 and Spark 3.5.0, 59 Java tests and all 169 tests in rasteralgebraTest passed:

mvn -B -pl spark/common -am spotless:apply \
  -Dtest=RasterBandEditorsTest,RasterBandAccessorsTest,SerdeTest \
  -Dsurefire.failIfNoSpecifiedTests=false -DfailIfNoTests=false \
  -Dsuites=org.apache.sedona.sql.rasteralgebraTest package

Formatting and pre-commit checks passed.

Did this PR include necessary documentation updates?

No documentation changes are needed. This restores the existing function's expected behavior.