refactor(Core.Abstractions): update to support net 4.6.2

DigitalData.Core.Abstractions/Interfaces/IDto.cs

@@ -1,4 +1,9 @@
-namespace DigitalData.Core.Abstractions.Interfaces;
+namespace DigitalData.Core.Abstractions.Interfaces
+#if NET
+    ;
+#elif NETFRAMEWORK
+    {
+#endif
 
 /// <summary>
 /// Ensures that extension methods are handled securely
@@ -6,4 +11,8 @@
 /// <typeparam name="Entity"></typeparam>
 public interface IDto<Entity> where Entity : IEntity
 {
-}
+}
+
+#if NETFRAMEWORK
+    }
+#endif

DigitalData.Core.Abstractions/Interfaces/IEntity.cs

@@ -1,8 +1,17 @@
-namespace DigitalData.Core.Abstractions.Interfaces;
+namespace DigitalData.Core.Abstractions.Interfaces
+#if NET
+    ;
+#elif NETFRAMEWORK
+    {
+#endif
 
 /// <summary>
 /// Ensures that extension methods are handled securely
 /// </summary>
 public interface IEntity
 {
-}
+}
+
+#if NETFRAMEWORK
+    }
+#endif