AddedgetLocationAccuracy andrequestTemporaryFullAccuracy methods, implemented only for iOS. Introduced a newLocationAccuracyStatus enum. Users can now check location accuracy on the iOS platform.

close#558

I have not made any changes to thepermission_handler module. I’m not sure if I should add code to use the implemented feature, as it is currently only available on iOS.

Pre-launch Checklist

• I made sure the project builds.
• I read theContributor Guide and followed the process outlined there for submitting PRs.
• I updatedpubspec.yaml with an appropriate new version according to thepub versioning philosophy, or this PR is does not need version changes.
• I updatedCHANGELOG.md to add a description of the change.
• I updated/added relevant documentation (doc comments with///).
• I rebased ontomain.
• I added new tests to check the change I am making, or this PR does not need tests.
• I made sure all existing and new tests are passing.
• I randart format . and committed any changes.
• I ranflutter analyze and fixed any errors.