feat: add pinchAndPan option to enable panning during pinch zoom

[timmywil]

Ref gh-512
Fixes gh-606

PR Checklist

Please review the guidelines for contributing to this repository.

• I am requesting to pull a topic/feature/bugfix branch (right side). In other words, not main.
• I have run yarn test against my changes and tests pass.
• I have added tests to prove my fix is effective or my feature works. This can be done in the form of unit tests in test/unit/ or a new or altered demo in demo/.
• I have added or edited necessary types and generated documentation (yarn docs), or no docs changes are needed.

Description

Panning during pinch zoom was removed in 4.4.1 to fix #512. But that is technically a change in behavior and should have been done in a major version. To that end, I've added back the behavior here as an option (pinchAndPan: true) that can be passed to re-enable the behavior. I'm currently testing to see if I can get it to work with the original issue.