allow host username to be specified during installation, allow user to be added to host role, refresh user list after delete, improve date/time entry in scheduled jobs, require license acceptance during module and theme install

Oqtane.Shared/Shared/InstallConfig.cs

@@ -9,6 +9,7 @@ namespace Oqtane.Shared
         public string TenantName { get; set; }
         public bool IsNewTenant { get; set; }
         public string SiteName { get; set; }
+        public string HostUsername { get; set; }
         public string HostPassword { get; set; }
         public string HostEmail { get; set; }
         public string HostName { get; set; }