Standard library alias cores

[sigilante]

We propose adding a set of aliasing libraries to /lib in %base which may be optionally imported by developers into Dojo or their own code without needing any additional installation or setup steps. These libraries provide an alternative naming scheme to the lapidary form preferred in kernel development.

Developers new to the Urbit ecosystem often find the usage of particular words for gate names in Hoon, Zuse, and elsewhere to be somewhat disorienting. Although there are good reasons that /sys prefers the arm names and faces that it does, it is also straightforward to provide a set of aliases which more or less hew to the expectations of a modal developer new to Urbit. For instance, we alias ++slag with ++after, and ++fand with ++find-all.

While this proposal follows the basic inspiration of the /lib/sequent library, it hews to only providing aliases for built-in functions in /sys (rather than extending functionality). (/lib/sequent provides enhanced list functionality, including zip3 and similar compound operators.)