Attempt to fix Mac build.
Attempt to fix Mac build.

Problem
http://ci.bigworldtech.com/job/bld_ngt-feature-mac_osx_x64_tools_cont/641/console
"CMake 3.2.3 or higher is required.  You are running version 3.2.1"
It looks like the CI machines have a version of CMake that is too old.

Solution
Swap the order in the path so that the version of CMake found in third_party is used first.

dava/wgtf,dava/wgtf,dava/wgtf,dava/wgtf,dava/wgtf