Change obmc-phosphor-fan to use fanctl

A new fanctl module is added in skeleton to replace pyfanctl.
fanctl is written in C instead of python.

Partially resolves openbmc/openbmc#93

Change-Id: I404176f3d526027abac089a4c168240ba6ae69b1
Signed-off-by: Yi Li <adamliyi@msn.com>
diff --git a/common/recipes-phosphor/fans/obmc-control-fan/org.openbmc.control.Fans.service b/common/recipes-phosphor/fans/obmc-control-fan/org.openbmc.control.Fans.service
index 9fead8f..0c10b09 100644
--- a/common/recipes-phosphor/fans/obmc-control-fan/org.openbmc.control.Fans.service
+++ b/common/recipes-phosphor/fans/obmc-control-fan/org.openbmc.control.Fans.service
@@ -7,7 +7,7 @@
 
 [Service]
 Restart=always
-ExecStart={sbindir}/fan_control.py
+ExecStart={sbindir}/fan_control.exe -f 6
 Type=dbus
 BusName={BUSNAME}
 Environment="PYTHONUNBUFFERED=1"