Keeping file handles (and pids, and scheme id, ...) as usize is a
footgun. Let's remove it.

Keeping scheme ids (and pids, and file handles, ...) as usize is a
footgun. Let's remove it.

* Port previous ethernet scheme

* Add ipd

* Fix initfs rebuilds, use QEMU user networking addresses in ipd

* Add tcp/udp, netutils, dns, and network config

* Add fsync to network driver

* Add dns, router, subnet by default

* Fix e1000 driver. Make ethernet and IP non-blocking to avoid deadlocks

* Add orbital server, WIP

* Add futex

* Add orbutils and orbital

* Update libstd, orbutils, and orbital
Move ANSI key encoding to vesad

* Add orbital assets

* Update orbital

* Update to add login manager

* Add blocking primitives, block for most things except waitpid, update orbital

* Wait in waitpid and IRQ, improvements for other waits

* Fevent in root scheme

* WIP: Switch to using fevent

* Reorganize

* Event based e1000d driver

* Superuser-only access to some network schemes, display, and disk

* Superuser root and irq schemes

* Fix orbital

Add fsync. Add env scheme, currently hardcoded to get ion to launch. Make serial IRQ send data to debug scheme

To avoid various bugs regarding the typing of file descriptors, we
newtype them into a simple wrapper type.

- Document some stuff.