More documentation - almost all Models done

https://github.com/oqtane/oqtane.framework/issues/1382
Should not contain any code changes, just docs

Oqtane.Shared/Models/Database.cs

@@ -1,15 +1,33 @@
 namespace Oqtane.Models
 {
+    /// <summary>
+    /// Information about a Database used in the current Oqtane installation
+    /// </summary>
     public class Database
     {
+        /// <summary>
+        /// Friendly name for the Admin to identify the DB
+        /// </summary>
         public string FriendlyName { get; set; }
 
+        /// <summary>
+        /// Name of the Database
+        /// </summary>
         public string Name { get; set; }
 
+        /// <summary>
+        /// Namespace & name of the UI control to configure this database, like `Oqtane.Installer.Controls.SqlServerConfig, Oqtane.Client`
+        /// </summary>
         public string ControlType { get; set; }
 
+        /// <summary>
+        /// Type of DB using the full namespace, like `Oqtane.Database.SqlServer.SqlServerDatabase, Oqtane.Database.SqlServer`
+        /// </summary>
         public string DBType { get; set; }
 
+        /// <summary>
+        /// Software package responsible for using this DB - like `Oqtane.Database.MySQL`
+        /// </summary>
         public string Package { get; set; }
     }
 }