In v3.9.0, introduce a new way `auto-wrap` to protect python code when it's imported by outer scripts.
Refer to [Mechanism Without Restrict Mode](src/mechanism.mdmechanism-without-restrict-mode)
* Add new mode `wrap` for `--obf-code-mode`
* Remove `func.__refcalls__` in `__wraparmor__`
* Add new project attribute `is_package`
* Add option `--is-package` in command `config`
* Add option `--disable-restrict-mode` in command `obfuscate`
* Reset `build_time` when project configuration is changed
* Change output path when `is_package` is set in command `build`
* Change default value of project when find `__init__.py` in comand `init`
* Project attribute `entry` supports absolute path