[Core] Support 'ExpandoObject' in 'Merge' via 'TableName'.

[mikependon]

Code below must be supported.

using (var connection = new SqlConnection(connectionString))
{
	var customer = new ExpandoObject() as IDictionary<string, object>();
	customer.Add("Id", 10045);
	customer.Add("LastUpdatedUtc", DateTime.UtcNow);
	connection.Merge("Customer", customer );
}

[mikependon]

This is now deployed at RepoDB v1.12.5-beta1.