Image Labeling module does not seem to use Android core utilities

We modeled the text recognition Android package off of image labeling, and it looks like [they do not use the core utilities](https://github.com/infinitered/react-native-mlkit/pull/235#discussion_r2560248560), which means they probably don't handle orientation correctly.

We should migrate image labeling to use core utilities. Fixed the text recognition issue in its own PR.

Start by comparing the image labeling Android package with the core utilities used by the text recognition package, following the linked pull request discussion. Migrate image labeling to those utilities, then verify that orientation handling is covered; the issue does not name specific files or tests.

Written by the indexing model from the issue text.