[Core] Add table based operations for Count, Delete, DeleteAll, Insert, Merge, Truncate, Update.

The following must be supported.

	connection.Count("TableName", queryGroup);
	
	connection.Delete("TableName", queryGroup);
	
	connection.DeleteAll("TableName");
	
	connection.Insert("TableName", entity);
	
	connection.Merge("TableName", entity, qualifiers);
	
	connection.Truncate("TableName");
	
	connection.Update("TableName", entity);