too many bugs....

[cityblack1]

i use the lib for 2 days, but found 2 bugs

the document said it tries to 100% compatible, obviously it has a long way to go...

1. while original json string has a type error field, std json lib tries to parse other fields as much as possible, but json iterator may early break
2. while a number field exceed int64, json-iterator may overflow that number, but std-lib won't