They do save space (nearly 100b), but they complicate our Forth-ification
process. We'll re-add them later.

This allows us to save a whole 500 bytes on the final binary size!

This change comes after I took a look at the hex dump and saw that one letter
constants in z80a.fs took a lot of space.

The removal of the "divide" routine highlighted the fact that
nativeWord wasn't properly stabilized.

This requires us to significantly adjust our build process, which
now has 3 stages.

Otherwise, when a defining word would be called outside a definition
itself, it would get the name of the last parsed word, that is,
itself!

For example, dummy.fs, instead of creating a "_______" entry, created
a "(entry)" entry...

The goal being to add a new native code dict staging phase.

This should help with upcoming challenges in bootstrapping z80 code
compiled through Forth.

The commit ended up being much bigger than anticipated. This was a long thread
of underlying complexities. This lead to the creation of interesting concepts
such as (sysv).

You'll soon see where I'm going with this...

Modest first step

It's not really an App.

Also, un-IMMEDIATE "LITN" it didn't make any sense.