Windows agent has been moved from common to core,
so for consistency move mac agent too.
Since agent and agent-enabled client depend on jsoncpp,
also move jsoncpp build scripts.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
The CMakeLists.txt settings from the project root directory are
inherited by the defined subdirectories automatically.
Also switch to a simpler way of setting the CMAKE_MODULE_PATH.
According to the CMake documentation, this variable is empty by
default [1] and should not need to pull in existing settings.
Finally remove the comment regarding CMake's use case, as we are
moving towards full CMake support for OpenVPN 3.
Signed-off-by: David Sommerseth <davids@openvpn.net>