lmsensors: Initial commit

The lmsensors project provides hardware health monitoring tools in the
form of kernel drivers, a user-space library and some helper
programs. This recipe provides all the different user-space tools
offered by lmsensors in separete packages. Startup scripts and default
configuration files are also made available through this commit.

The packages consist of (description text from lmsensors documentation):
* lmsensors-libsensors: The user-space sensors support library code.
* lmsensors-sensors: A console tool to report sensor readings and set
  new sensor limits.
* lmsensors-sensord: A daemon to watch sensor values and log
  problems. It includes RRD support.
* lmsensors-fancontrol: Controls fanspeeds responding to changes on
  temperature sensors. Configuration through pwmconfig.
* lmsensors-sensorsdetect: This program tries to detect the available
  SMBus adapters and the chips connected to them, as well as Super-I/O
  and misc chips.
* lmsensors-sensorsconfconvert: Convert configuration files from
  lmsensorsv2 to lmsensorsv3.
* lmsensors-pwmconfig: tests the pwm (pulse width modulation) outputs
  of sensors for their effect on the fans and helps to setup the
  configfile for fancontrol.
* lmsensors-isatools: This program sets/gets the registers of ISA or
  Super-I/O chips.

Signed-off-by: Marc Ferland <ferlandm@sonatest.com>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>