GUACAMOLE-1078: Catalan I18N. Generation of a translation into the Catalan language.

The modifications add translation file for the webapp and the following extensions:
  - guacamole-auth-cas
  - guacamole-auth-duo
  - guacamole-auth-jdbc
  - guacamole-auth-openid
  - guacamole-auth-quickconnect
  - guacamole-auth-radius
  - guacamole-auth-saml
  - guacamole-auth-totp

Modify the guac-manifest file of the different translated extensions and place translations in alphabetical order

extensions/guacamole-auth-quickconnect/src/main/resources/guac-manifest.json

@@ -21,6 +21,7 @@
     ],
 
     "translations" : [
+        "translations/ca.json",
         "translations/de.json",
         "translations/en.json",
         "translations/ja.json",

extensions/guacamole-auth-quickconnect/src/main/resources/translations/ca.json

@@ -0,0 +1,18 @@
+{
+
+    "DATA_SOURCE_QUICKCONNECT" : {
+        "NAME" : "QuickConnect"
+    },
+
+    "QUICKCONNECT" : {
+        "ACTION_CONNECT"        : "Connecta’t",
+        
+        "ERROR_INVALID_URI"      : "Especificació URI no vàlida",
+        "ERROR_NO_HOST"          : "No s'ha especificat l'amfitrió",
+        "ERROR_NO_PROTOCOL"      : "No s'ha especificat protocol",
+        "ERROR_NOT_ABSOLUTE_URI" : "L'URI no és absolut",
+        
+        "FIELD_PLACEHOLDER_URI" : "Introduïu l'URI de connexió"
+    }
+
+}