Android: restore getWritePermission, but check can have permission

[ath0mas]

Platforms affected

Android

Motivation and Context

Follow-up to #608 and my comment with question and analysis on it.

Description

Revert getWritePermission to have consistent code for it. And make it never been called, not through a wrong return value of true inside hasWritePermission, but with a dedicated canHaveWritePermission function. This one is the place to compare current version with API 33.

Testing

Checklist

• [x] I've run the tests to see all new and existing tests pass
• [x] I added automated test coverage as appropriate for this change
• [x] Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• [x] If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• [x] I've updated the documentation if necessary