Adds the ability for lifecycle scripts of Link nodes to depend
on each other, such that a `prepare` script of linked module A
can make use of files that are a result of a `prepare` script of
a linked package B.

This is important in order to unlock workflows in which a workspace
needs to make use of another workspace but they all have transpilation
steps (very common in Typescript projects) so tracking the order
(and completion) in which the dependencies lifecycle scripts runs
becomes necessary.

Fixes: npm/cli#3034