* Add ReadBox trait
* Add boxtype macro
* Remove offset in BoxHeader
* Fix parsing error when box has largesize
* Remove duplicated codes reading version and flags
* Simplify all box size types as largesize
* Add WriteBox trait and improve compatibility with large box
* Split large atoms file into smaller ones
* Refator Error
Co-authored-by: Byungwan Jun <unipro.kr@gmail.com>