Added suuport to inject an IOqtaneDatabase in EntityBuilders to allow each Database to control certain Migration behaviors. Also updated Installer to dynamically build Database Configuration section

Oqtane.Shared/Models/ConnectionStringField.cs

@@ -0,0 +1,11 @@
+namespace Oqtane.Models
+{
+    public class ConnectionStringField
+    {
+        public string FriendlyName { get; set; }
+
+        public string Name { get; set; }
+
+        public string Value { get; set; }
+    }
+}