Update IoTivity version in octypes.h
Update IoTivity version in octypes.h

At OSWG meeting we agreed to change version 1.4 to 2.0.  I won't
rename the branch but I'm going to change the final tag name to
2.0.0 instead of 1.4.0, and I'm going to change the version
reported by IoTivity itself (this patch).

Change-Id: If23e5c258e61298e6b10996402b0961b2ebcd672
Signed-off-by: Nathan Heldt-Sheller <214cad4ab375dc179217f558f8b9854a693faf7f@intel.com>

rzr/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity,rzr/iotivity,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity