[ADF-4810] sso public urls configuration (#5102)

* update OAUTH schema and model

* update demoshell config for public urls

lib/core/app-config/schema.json

@@ -969,6 +969,12 @@
         "redirectUriLogout": {
           "type": "string"
         },
+        "publicUrls": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
         "scope": {
           "type": "string"
         }

lib/core/models/oauth-config.model.ts

@@ -24,4 +24,5 @@ export interface OauthConfigModel {
     silentLogin?: boolean;
     secret?: string;
     redirectUriLogout?: string;
+    publicUrls: string[];
 }