Move settings as dynamic json file; nice token info display

example_settings.json

@@ -0,0 +1,15 @@
+{
+  "keycloakUri": "https://philo.ydns.eu/auth",
+  "realm": "test",
+  "authProvider": "keycloak",
+  "sso": false,
+  "clientId": "oidc-test-web",
+  "resourceServerUrl": "https://philo.ydns.eu/oidc-test/resource",
+  "resourceScopes": [
+    "get:time",
+    "get:bs"
+  ],
+  "sslCertFile": "/path/to/cert.pem",
+  "sslKeyFile": "/path/to/key.pem",
+  "tokenSandbox": true
+}