[PM-7289] implement generator libraries (#9549)

This is a copy of the files. The source in `@bitwarden/common` will be deleted once
all of the applications have been ported to the library.

libs/tools/generator/extensions/src/navigation/key-definition.spec.ts

@@ -0,0 +1,11 @@
+import { GENERATOR_SETTINGS } from "./key-definitions";
+
+describe("Key definitions", () => {
+  describe("GENERATOR_SETTINGS", () => {
+    it("should pass through deserialization", () => {
+      const value = {};
+      const result = GENERATOR_SETTINGS.deserializer(value);
+      expect(result).toBe(value);
+    });
+  });
+});