Return the dependency configurations mapped to the given moduleConfiguration, actually
resolved because of the given requestedConfiguration
Usually requestedConfiguration and moduleConfiguration are the same, except when a conf
extends another, then the moduleConfiguration is the configuration currently resolved (the
extended one), and requestedConfiguration is the one actually requested initially (the
extending one). Both moduleConfiguration and requestedConfiguration are configurations of the
caller, the array returned is composed of the required configurations of the dependency
described by this descriptor.