ports: port `dash`

[d4ilyrun]

Dash

Dash (Debian Almquist shell) is a modern POSIX-compliant implementation of /bin/sh (sh, Bourne shell).

I've chosen this program as our first executable port for the following reasons:

• It is an interactive shell ! What better way to feel like we have a truely working system than this 👍
• Busybox requires much more features to be ported

Roadmap

• build: add a way to quickly add ports for our OS (fetch, patch, build, install)
• kernel: implement the required syscalls to compile ash
• ports: build the dash binary using our toolchain

[d4ilyrun]

After trying to port busybox, it appears that it requires a whole lot of non-standard headers + additional features just to be setup.
I just want to get straight into things, and will be switching to a more simple shell implementation: dash.