support adding connect user

MediaBrowser.Server.Implementations/Connect/ConnectManager.cs

@@ -1085,6 +1085,34 @@ namespace MediaBrowser.Server.Implementations.Connect
             }
         }
 
+        public async Task AddConnectSupporter(string id)
+        {
+            if (!_securityManager.IsMBSupporter)
+            {
+                throw new InvalidOperationException();
+            }
+
+            var url = GetConnectUrl("keyAssociation");
+
+            url += "?serverId=" + ConnectServerId;
+            url += "&supporterKey=" + _securityManager.SupporterKey;
+            url += "&userId=" + id;
+
+            var options = new HttpRequestOptions
+            {
+                Url = url,
+                CancellationToken = CancellationToken.None
+            };
+
+            SetServerAccessToken(options);
+            SetApplicationHeader(options);
+
+            // No need to examine the response
+            using (var stream = (await _httpClient.SendAsync(options, "POST").ConfigureAwait(false)).Content)
+            {
+            }
+        }
+
         public async Task RemoveConnectSupporter(string id)
         {
             if (!_securityManager.IsMBSupporter)

MediaBrowser.Server.Implementations/Localization/Server/server.json

@@ -50,6 +50,8 @@
     "ButtonOrganize": "Organize",
     "LinkedToMediaBrowserConnect": "Linked to Media Browser Connect",
     "HeaderSupporterBenefits": "Supporter Benefits",
+    "HeaderAddUser": "Add User",
+    "LabelAddConnectSupporterHelp": "To add a user who isn't listed, you'll need to first link their accounts to Media Browser Connect from their user profile page.",
     "LabelPinCode": "Pin code:",
     "ButtonOk": "Ok",
     "ButtonCancel": "Cancel",