Add XML comments to public entities.

Aaru.Database/Models/UsbVendor.cs

@@ -36,10 +36,21 @@ using System.ComponentModel.DataAnnotations;
 
 namespace Aaru.Database.Models
 {
+    /// <summary>
+    /// USB vendor
+    /// </summary>
     public class UsbVendor
     {
+        /// <summary>
+        /// Builds an empty USB vendor
+        /// </summary>
         public UsbVendor() {}
 
+        /// <summary>
+        /// Builds a USB vendor with the specified parameters
+        /// </summary>
+        /// <param name="id">Vendor ID</param>
+        /// <param name="vendor">Vendor name</param>
         public UsbVendor(ushort id, string vendor)
         {
             Id        = id;
@@ -47,12 +58,27 @@ namespace Aaru.Database.Models
             AddedWhen = ModifiedWhen = DateTime.UtcNow;
         }
 
+        /// <summary>
+        /// Database ID
+        /// </summary>
         [Key]
         public ushort Id { get;             set; }
+        /// <summary>
+        /// Vendor name
+        /// </summary>
         public string   Vendor       { get; set; }
+        /// <summary>
+        /// Date when model has been added to the database
+        /// </summary>
         public DateTime AddedWhen    { get; set; }
+        /// <summary>
+        /// Date when model was last modified
+        /// </summary>
         public DateTime ModifiedWhen { get; set; }
 
+        /// <summary>
+        /// List of products from this vendor
+        /// </summary>
         public virtual ICollection<UsbProduct> Products { get; set; }
     }
 }