Add operations for database version 2.

Cicm.Database/IDbCore.cs

@@ -0,0 +1,19 @@
+using System.Data;
+
+namespace Cicm.Database
+{
+    public interface IDbCore
+    {
+        Operations Operations { get; }
+
+        long LastInsertRowId { get; }
+
+        bool OpenDb(string server, string user, string database, string password, ushort port);
+
+        void CloseDb();
+
+        bool CreateDb(string database, string server, string user, string password, ushort port);
+
+        IDbDataAdapter GetNewDataAdapter();
+    }
+}