[PM-11418] generator policy constraints (#11014)

* add constraint support to UserStateSubject
* add dynamic constraints
* implement password policy constraints
* replace policy evaluator with constraints in credential generation service
* add cascade between minNumber and minSpecial

Co-authored-by: Daniel James Smith <2670567+djsmith85@users.noreply.github.com>

libs/common/src/tools/state/identity-state-constraint.ts

@@ -0,0 +1,24 @@
+import { Constraints, StateConstraints } from "../types";
+
+// The constraints type shares the properties of the state,
+// but never has any members
+const EMPTY_CONSTRAINTS = new Proxy<any>(Object.freeze({}), {
+  get() {
+    return {};
+  },
+});
+
+/** A constraint that does nothing. */
+export class IdentityConstraint<State extends object> implements StateConstraints<State> {
+  /** Instantiate the identity constraint */
+  constructor() {}
+
+  readonly constraints: Readonly<Constraints<State>> = EMPTY_CONSTRAINTS;
+
+  adjust(state: State) {
+    return state;
+  }
+  fix(state: State) {
+    return state;
+  }
+}