Feature/shared refactor (#1176)

* refactor: move most of the shared entities to @start8labs/shared library

frontend/projects/shared/tsconfig.json

@@ -0,0 +1,13 @@
+/* To learn more about this file see: https://angular.io/config/tsconfig. */
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "baseUrl": "./",
+    "outDir": "../../out-tsc/lib",
+    "declaration": true,
+    "declarationMap": true,
+    "inlineSources": true,
+    "types": []
+  },
+  "exclude": ["src/test.ts", "**/*.spec.ts"]
+}