Replace Client interface with OpenDatabaseHook.

...rg/briarproject/bramble/api/identity/IdentityManager.java

.../briarproject/bramble/api/lifecycle/LifecycleManager.java

...c/main/java/org/briarproject/bramble/api/sync/Client.java

...rg/briarproject/bramble/identity/IdentityManagerImpl.java

...ava/org/briarproject/bramble/identity/IdentityModule.java

.../briarproject/bramble/lifecycle/LifecycleManagerImpl.java

...org/briarproject/bramble/properties/PropertiesModule.java

...ject/bramble/properties/TransportPropertyManagerImpl.java

...oject/bramble/versioning/ClientVersioningManagerImpl.java

...org/briarproject/bramble/versioning/VersioningModule.java

...riarproject/bramble/identity/IdentityManagerImplTest.java

.../bramble/properties/TransportPropertyManagerImplTest.java

...va/org/briarproject/bramble/test/TestLifecycleModule.java

...t/bramble/versioning/ClientVersioningManagerImplTest.java

...c/main/java/org/briarproject/briar/android/AppModule.java

.../java/org/briarproject/briar/android/RecentEmojiImpl.java

...ain/java/org/briarproject/briar/blog/BlogManagerImpl.java

...src/main/java/org/briarproject/briar/blog/BlogModule.java

...ain/java/org/briarproject/briar/feed/FeedManagerImpl.java

...src/main/java/org/briarproject/briar/feed/FeedModule.java