Rework derived state (#7290)

* Remove derived state from state classes

* Create provider for derived state

Derived state is automatically stored to memory storage, but can be derived from any observable.

* Fixup state provider method definitions

* Test `DefaultDerivedState`

* remove implementation notes

* Write docs for derived state

* fixup derived state provider types

* Implement buffered delayUntil operator

* Move state types to a common module

* Move mock ports to centra location

* Alias DerivedStateDependency type

* Add dependencies to browser

* Prefer internal rxjs operators for ref counting

* WIP

* Ensure complete on subjects

* Foreground/background messaging for browser

Defers work for browser to the background

* Test foreground port behaviors

* Inject foreground and background derived state services

* remove unnecessary class field

* Adhere to required options

* Add dderived state to CLI

* Prefer type definition in type parameters to options

* Prefer instance method

* Implements factory methods for common uses

* Remove nothing test

* Remove share subject reference

Share manages connector subjects internally and will reuse them until
refcount is 0 and the cleanup time has passed. Saving our own reference
just risks memory leaks without real testability benefits.

* Fix interaction state

libs/common/src/platform/state/derived-state.provider.ts

@@ -0,0 +1,25 @@
+import { Observable } from "rxjs";
+
+import { ShapeToInstances, DerivedStateDependencies } from "../../types/state";
+
+import { DeriveDefinition } from "./derive-definition";
+import { DerivedState } from "./derived-state";
+
+/**
+ * State derived from an observable and a derive function
+ */
+export abstract class DerivedStateProvider {
+  /**
+   * Creates a derived state observable from a parent state observable, a deriveDefinition, and the dependencies
+   * required by the deriveDefinition
+   * @param parentState$ The parent state observable
+   * @param deriveDefinition The deriveDefinition that defines conversion from the parent state to the derived state as
+   * well as some memory persistent information.
+   * @param dependencies The dependencies of the derive function
+   */
+  get: <TFrom, TTo, TDeps extends DerivedStateDependencies>(
+    parentState$: Observable<TFrom>,
+    deriveDefinition: DeriveDefinition<TFrom, TTo, TDeps>,
+    dependencies: ShapeToInstances<TDeps>,
+  ) => DerivedState<TTo>;
+}