update dtos for moderator and banned users in groups

MareSynchronosAPI/API.cs

@@ -57,6 +57,10 @@
         public const string SendGroupChangeOwner = "ChangeOwnerOfGroup";
         public const string SendGroupChangePinned = "ChangedPinnedUserInGroup";
         public const string SendGroupClear = "ClearGroup";
+        public const string SendBanUserFromGroup = "BanUserFromGroup";
+        public const string InvokeGetBannedUsersForGroup = "GetBannedUsersForGroup";
+        public const string SendUnbanUserFromGroup = "UnbanUserFromGroup";
+        public const string SendGroupSetModerator = "InvokeGroupSetModerator";
 
         public const string OnGroupChange = "OnGroupPushChange";
         public const string OnGroupUserChange = "OnGroupUserChange";

MareSynchronosAPI/BannedGroupUserDto.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MareSynchronos.API
+{
+    public record BannedGroupUserDto
+    {
+        public string UID { get; set; }
+        public string Reason { get; set; }
+        public DateTime BannedOn { get; set; }
+        public string BannedBy { get; set; }
+    }
+}

MareSynchronosAPI/GroupPairDto.cs

@@ -8,5 +8,6 @@
         public bool? IsPaused { get; set; }
         public bool? IsRemoved { get; set; }
         public bool? IsPinned { get; set; }
+        public bool? IsModerator { get; set; }
     }
 }