Stage 1 adds the additional variables to the drive
context and creates the temperature initialisation
function, which associates a hwmonX directory with
a block device. Also wrote the context update function,
that reads hwmon for each drive context and writes the
temperatures back to the context.
Stage 2 commit to follow which will make changes within
the GUI to call the update function every 60 seconds
and display the temperature information.
Since these modules are considered third-party (at
least for now) and we also don't want to apply
formatting to them.
Also removed the `AUTOMAKE_OPTIONS` from `Makefile.am` since
it would appear the `AM_INIT_AUTOMAKE` is actually defining
the automake options.
