relocated IDeletable and added methods for downloading assemblies from server /bin when running under Wasm

Oqtane.Shared/Models/IDeletable.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace Oqtane.Models
+{
+    public interface IDeletable
+    {
+        string DeletedBy { get; set; }
+        DateTime? DeletedOn { get; set; }
+        bool IsDeleted { get; set; }
+    }
+}