GUACAMOLE-1364: Refactor all SSO extensions beneath common base.

extensions/guacamole-auth-sso/modules/guacamole-auth-sso-saml/src/main/resources/guac-manifest.json

@@ -0,0 +1,20 @@
+{
+
+    "guacamoleVersion" : "1.3.0",
+
+    "name"      : "SAML Authentication Extension",
+    "namespace" : "saml",
+
+    "authProviders" : [
+        "org.apache.guacamole.auth.saml.SAMLAuthenticationProvider"
+    ],
+
+    "translations" : [
+        "translations/ca.json",
+        "translations/en.json",
+        "translations/ko.json",
+        "translations/fr.json",
+        "translations/pt.json"
+    ]
+
+}