Removed NioTSO client and server

- NioTSO client isn't needed because we're using RayLib
- Added FreeSO's API server to handle most backend operations

server/FSO.Server.Api.Core/ApiConfig.cs

@@ -0,0 +1,42 @@
+using FSO.Server.Api.Core.Services;
+
+namespace FSO.Server.Api.Core
+{
+    public class ApiConfig
+    {
+        /// <summary>
+        /// How long an auth ticket is valid for
+        /// </summary>
+        public int AuthTicketDuration = 300;
+
+        /// <summary>
+        /// If non-null, the user must provide this key to register an account.
+        /// </summary>
+        public string Regkey { get; set; }
+
+        /// <summary>
+        /// If true, only authentication from moderators and admins will be accepted
+        /// </summary>
+        public bool Maintainance { get; set; }
+
+        public string Secret { get; set; }
+
+        public string UpdateUrl { get; set; }
+        public string CDNUrl { get; set; }
+
+        public string NFSdir { get; set; }
+
+        public string SmtpHost { get; set; }
+        public int SmtpPort { get; set; }
+        public string SmtpPassword { get; set; }
+        public string SmtpUser { get; set; }
+
+        public bool SmtpEnabled { get; set;  }
+        public bool UseProxy { get; set; }
+
+        public int? UpdateID { get; set; }
+
+        public string BranchName { get; set; } = "dev";
+        public IUpdateUploader UpdateUploader { get; set; }
+    }
+}