this function can fast convert row's all key:value to dictionary 
now you can use Row["key"] get the value 
this func auto convert Int64 to Int

remove key "

old fun can get String type for Optional Property 
now change String to NSString  for remove Property

now you can use underside code to insert data

insert(["id":1,"name":"this is test","null_code":NSNULL(),"bool":false])

fixed toDictionary() method 
if column is null , now return NSNULL()

now you can call  insert(["id":1,"double":12.22,"bool":false,"null":NSNULL()]) 

this method not support BLOB type