[SEDONA-361] Fix performance issues of map algebra functions and some band operators

[Kontinuation]

Did you read the Contributor Guide?

• Yes, I have read Contributor Rules and Contributor Development Guide

Is this PR related to a JIRA ticket?

• Yes, the URL of the associated JIRA ticket is https://issues.apache.org/jira/browse/SEDONA-361. The PR name follows the format [SEDONA-XXX] my subject.

What changes were proposed in this PR?

We've spotted several performance hits of map algebra functions:

1. ImageUtils.createConstantImage is very slow, we'd better manually create a buffered image, which is way faster.
2. The .getData() method on BufferedImage objects creates an unnecessary copy of the raster object. We've added a utility function to implement a fast path for BufferedImage.

How was this patch tested?

Passing existing tests

Did this PR include necessary documentation updates?

• No, this PR does not affect any public API so no need to change the docs.