update auth

- add tables and repos
- add dto

src/main/java/de/w665/biblenotes/rest/security/UserAuthenticationContext.java

@@ -0,0 +1,13 @@
+package de.w665.biblenotes.rest.security;
+
+import de.w665.biblenotes.db.entity.Role;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class UserAuthenticationContext {
+    private String username;
+    private int userId;
+    private Role role;
+}