evadne
Use erlang term format instead of ascii
This changes apprentice.c to use the erl_interface/ei.h instead of ascii.
Probably also fixes a possible buffer overflow in the old process_line, and will work with the maximum path length (4096).
Magic errors now try to uses magic_errno to have more generic errors (for example, my libmagic wasn't returning the same string as yours ("unable to access file").
perform/3 calls now support passing a binary instead of a file path ({:bytes, ...}).
The databases are now loaded by using message passing and not arguments.
Added GenMagic.Server.recycle and GenMagic.Server.reload which allows to manually recycle/reload the port, and also loading a new set of databases.
Fixes building on musl (was related to the arguments code, see #16, #18).
Handle timeouts a bit nicer in server.
Handle a recycle stop timeout by forcing the port close.
Added tests dedicated to the port.
Tested on: MacOS, FreeBSD, Alpine, Ubuntu, Debian, Fedora, Voidlinux. TODO: Open/Net BSD.
