PR #156 merged a base class called `inifile` that dynamically queried
hiera using explicit `hiera_hash()` functions and required functions
from stdlib.
It is an anti-pattern for component classes to contain hiera
functions (even ones that do not trigger under all circumstances) as
this leads to tight-coupling with hiera data structures. It also
promotes the anti-pattern of declaring resources directly in hiera.
Also, inifile is not going to receive a major version increase for a
while (we hope) and so adding a dependency is not desirable at this
point.
Unfortunately this feedback was missed while reviewing the original PR,
so it has to be reverted.
This added functionality allows you to specify hashes for ini_setting
and ini_subsetting so that they might be stored in Hiera. Without this
patch, you need to use ini_setting and ini_subsetting resources strictly
in code whereas with this patch, you could describe this in Hiera.
