Migrate KeyringController to BaseControllerV2 (#1378)

* feat: supp cacheEncryptionKey and submitEncryptionKey method

* docs: update jsdoc

* refactor: migrate KeyringController to BaseControllerV2

* fix: use immer v9

* rollback: controller parameters change

* refactor: change KeyringConfig to KeyringControllerConfig

* refactor: sync controller state with keyring state

* refactor: no vault sync

* refactor: use state value for isUnlocked

* refactor: use controller state for test assertions

* refactor: remove onLock and onUnlock in favor of events

* refactor: sync mem and persistent store

* refactor: apply review feedback

* refactor: use option bag for constructor

* fix: set immer as prod dependency

* fix: add encryption key and salt to memstore

* refactor: remove vault encryptionKey and encryptionSalt from returns

* fix: remove forgotten state return

packages/keyring-controller/package.json

@@ -38,7 +38,8 @@
     "@metamask/preferences-controller": "workspace:^",
     "async-mutex": "^0.2.6",
     "ethereumjs-util": "^7.0.10",
-    "ethereumjs-wallet": "^1.0.1"
+    "ethereumjs-wallet": "^1.0.1",
+    "immer": "^9.0.6"
   },
   "devDependencies": {
     "@ethereumjs/common": "^2.6.1",