[Translation] Refresh catalogues when resources change

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #11530
| License       | MIT
| Doc PR        | no

When a translation file is added in a bundle, the container is refreshed thanks to a DirectoryResource watching for changes.
But the translator has his own cache that is not refreshed.

This PR adds a hash check when cached is used.



To be BC, you should take into account old caches where the cache only returns one value.