Refactoring, adding some login logic stuff

src/app/models/doppelkopf/enums/announcement.ts

@@ -0,0 +1,7 @@
+export enum Announcement {
+	RE = 0,
+	KONTRA = 1,
+	NO_NINETY = 2,
+	NO_SIXTY = 3,
+	NO_THIRTY = 4
+}