Change Details

Implement person_get for the in-memory storage. I have also updated the person counter in the `stat_counters` method. This is needed to remove all the storage mocks in swh-web tests. Related T1271 Related T1377

Implement `person_get` for the in-memory storage. I have also updated the person counter in the `stat_counters` method. This is needed to remove all the storage mocks in swh-web tests. Related T1271 Related T1377

Implement `person_get` for the in-memory storage. I have also updated the person counter in the `stat_counters` method. This is needed to remove all the storage mocks in swh-web tests. Related T1271 Related T1377