ebi-state: persistent database and service rework#15
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- implement `Storable` for `Shelf, Workspace` in `ebi-types` - wrap `ChaCha12Rng` into crate-owned `SeededChacha12Rng` in `ebi-filesystem` - move redb logic of `ebi-database` into own module
- redefine `StatefulRef` as `Inner<ArcSwap<T>, I>` implementing `Ref` trait - remove `RwLock` and inner state update execution in `stateful_rcu`, now return the to be executed state update `Future` instead
- rename `StateService` to `StateDatabase` - now service API can be scoped to workspace by calling `state_db.workspace(id).workspace_related_call(...)` - move `EditShelf`, `EditWorkspace`, `CreateTag` and `DeleteTag` workspace-related logic inside `StateDatabase`
- rename `ResponseMetada` to `Status` in `ebi-proto` - add new `MessageType` variant: `ResponseError` - return `Status` from `RpcService` instead of unit () error, making error handling cleaner
- create and update entries to persisent redb database according to `StateDatabase` service calls
- implement `full_load` for `StateDatabase`, which tries to load a stored database reconstructing references from `Storable` types - add test for db loading correctness `save_restore_db`
…estore_db` test - add `sync_state` handling commiting a staged state of the history for `StateDatabase` - `PartialEq` impls for info fields in `ebi-types` - expand `save_restore_db` test to check for post state-sync correctness
- tests for creating/deleting tags - tests for creating/deleting workspaces - tests for assigning/unassgning shelves
- rename `ebi-database` to `ebi-state` - rename `History` to `StateChain` - rename `GroupState` to `StateView` - rename `StateDatabase` to `State` - rename `ScopedDatabase` to `WorkspaceState` - change `synced` to `commited/received` in `StateChain` - rename `hist` to `confirmed` in `StateChain`
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Stateservice and full loading from a saved redb instance throughfull_loadebi-databasecrate rename intoebi-stateand related renamesStateChain: add committed and received operations CRDT stub, renamehisttosynced