REFAC: Update OpenHaptics build support

CMake/External/CMakeLists.txt

CMake/External/External_FTD2XX.cmake

CMake/External/External_Libusb.cmake

CMake/External/External_OpenHaptics.cmake

CMake/External/External_VRPN.cmake

CMake/FindOpenHapticsSDK.cmake

CMake/Utilities/imstkFind.cmake

CMakeLists.txt

Docs/source/documentation.rst

Examples/BoneDrilling/CMakeLists.txt

Examples/CameraController/CMakeLists.txt

Examples/ObjectController/CMakeLists.txt

Examples/VirtualCoupling/CMakeLists.txt

README.md

Source/Devices/CMakeLists.txt

Source/Devices/imstkHDAPIDeviceClient.h

Source/Devices/imstkHDAPIDeviceServer.cpp

Source/Devices/imstkHDAPIDeviceServer.h

Source/Devices/imstkVRPNDeviceServer.cpp

iMSTKConfig.cmake.in