Add Safe value API and start OAuth2Server

src/resources/views/oauth2/authorize.pug

@@ -0,0 +1,15 @@
+extends ../base
+
+block content
+    .offset(style='padding-top: 20vh')
+    h3.login-heading Authorize #{clientName}?
+
+    if scopeDescription
+        p This will allow #{clientName} to #{scopeDescription}.
+    else
+        p This will allow #{clientName} full access to your account.
+
+    //p After allowing this, you may not be prompted again.
+
+    if buttonText && buttonUrl
+        a.button(href=buttonUrl) #{buttonText}