add ability to pass inline expressions

edwin_sql:select(table,[column],[{column,  {"some_function()"}},{id, {{"yet_another_function(? + ? - ?)", [3,2,1]}}}]).        
{"SELECT `table`.`column` FROM `table` WHERE `table`.`column` = some_function() AND `table`.`id` = yet_another_function(? + ? - ?)",
 [1,2,3]}