feat(openid-connect): Switch to generic OIDC Client library instead of using Keycloak.js (#273)

Packages/ohif-dicomweb-client/src/getAccessToken.js

@@ -1,7 +1,14 @@
+import { OHIF } from 'meteor/ohif:core';
+
 export default function getAccessToken() {
     if (!global.window || !window.sessionStorage || !sessionStorage) {
         return;
     }
 
+    const userAccessToken = OHIF.user.getAccessToken();
+    if (userAccessToken) {
+        return userAccessToken;
+    }
+
     return sessionStorage.token;
 }