Unable to read 32-bit and 64-bit integer from sqlite database

Sqlite in neko can only read 31-bit integers from sqlite. Example:

```
class Main
{
public static function main(){
var connection = sys.db.Sqlite.open("test.db");

var max31bit: haxe.Int64 = 0x40000000 - 1 ;

var values : Array = [ max31bit, max31bit+1, max31bit<<33];

connection.request('create table if not exists test (column1 int)');
connection.request('delete from test');
for (currValue in values) {
connection.request('insert into test values ($currValue)');
}

var rs : sys.db.ResultSet = connection.request("select * from test");
while (rs.hasNext()){
trace(rs.next());
}
}
}
```
Result:
```
Main.hx:18: { column1 => 1073741823 }
Main.hx:18: { column1 => -1073741824 }
Main.hx:18: { column1 => 0 }
```
Expected:
```
Main.hx:18: { column1 => 1073741823 }
Main.hx:18: { column1 => 1073741824 }
Main.hx:18: { column1 => 9223372028264841216 }
```

Though, Neko can correctly write 32-bit and even 64-bit integers to sqlite database, and I can read them using sqlite CLI:

```
>sqlite3 test.db
SQLite version 3.18.0 2017-03-28 18:48:43
Enter ".help" for usage hints.
sqlite> select * from test;
1073741823
1073741824
9223372028264841216
```
Tested on NekoVM 2.1.0 and Haxe Compiler 3.4.2.