Add predictor 2 (integer) and predictor 3 (float) support for writing compressed GTiff files

[dsamaey]

Overview

• This PR adds predictor 2&3 support for writing compressed GTiff files
  cfr. Predictor 2 & 3 support for writing compressed GTiff files #3587

Checklist

• ./CHANGELOG.md updated, if necessary. Link to the issue if closed, otherwise the PR.
• Module Hierarchy updated, if necessary
• docs guides update, if necessary
• New user API has useful Scaladoc strings
• Unit tests added for bug-fix or new feature

Demo

Optional. Screenshots/REPL

Notes

Optional. Ancillary topics, caveats, alternative strategies that didn't work out, anything else.

Closes #3587

[dsamaey]

Unrelated test failed (out of heap memory)

[pomadchin]

Thank you @dsamaey, it looks great! I also need to take care of #3586, was very much loaded recently but will try to merge these two PRs asap.

[pomadchin]

This is awesome, thanks for the contribution!

I did some minor code hygiene cleanups, but the entire logic is untouched.