Replace x86 machine to i386 ...

Makes a lot more sense, as it is a baseline instruction set.

"x86" alone usually means the entire family of processors.

Fix odd CLI error ...

Will do a better fix later

Fix argument-less debugger spawns

Make long options require equal sign

Update CLI

cli: Clear buffers on re-entry

Change wait function signature for future expansion

cli: Register arm targets, changed -a/--arch (back?) to -m/--machine

Fix CLI for dumper

Separate Alicedump from Alicedbg