[video_player] Direct control over rotation of videos

[AndreSbro03]

If the argument rotation is passed the player ignore the controller.value.rotationCorrection and rotates the video by an angle (in degrees) specified in the variable. This allows more control over the video on the part of the user.

Pre-launch Checklist

• [ ] I read the Contributor Guide and followed the process outlined there for submitting PRs.
• [ ] I read the Tree Hygiene page, which explains my responsibilities.
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• [x] I signed the CLA.
• [x] The title of the PR starts with the name of the package surrounded by square brackets, e.g. [shared_preferences]
• [ ] I linked to at least one issue that this PR fixes in the description above.
• [ ] I updated pubspec.yaml with an appropriate new version according to the pub versioning philosophy, or this PR is exempt from version changes.
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• [x] I updated/added relevant documentation (doc comments with ///).
• [ ] I added new tests to check the change I am making, or this PR is test-exempt.
• [ ] All existing and new tests are passing.

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[flutter-dashboard[bot]]

It looks like this pull request may not have tests. Please make sure to add tests before merging. If you need an exemption, contact "@test-exemption-reviewer" in the #hackers channel in Discord (don't just cc them here, they won't see it!).

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[stuartmorgan-g]

Thanks for the submission!

In the future, please do not delete the checklist that is in the PR template; it is there for a reason. This PR is missing required elements described in the checklist (I’ve restored it to the PR description), which need to be addressed before it moves forward with review.

I am marking the PR as a Draft. Please review the checklist, updating the PR as appropriate, and when that’s complete please feel free to mark the PR as ready for review.

In the issue you file, please provide use case details explaining why this needs to be built into the plugin rather than clients wanting arbitrary rotation just wrapping the widget in their own transform.

[stuartmorgan-g]

Since this is marked as a draft and hasn't been updated in several months, I’m going to close it so that our PR queue reflects active PRs. Please don't hesitate to submit a new PR if you decide to revisit this. Thanks!