ifopt-config.cmake error on Windows

[johnwason]

I am getting the following error when calling 'find_package()' for ifopt:

CMake Error at C:/ws/conda-bld/tesseract-robotics-superpack_1626912746269/_h_env/opt/tesseract_robotics/share/ifopt/cmake/ifopt-config.cmake:47 (get_property):
  IMPORTED_LOCATION not set for imported target "ifopt::ifopt_core".
Call Stack (most recent call first):
  CMakeLists.txt:12 (find_package)

The offending line seems to be here:

ifopt/ifopt-config.cmake

Line 47 in 27451ce

get_property(ifopt_LIB_CORE TARGET ifopt::ifopt_core PROPERTY LOCATION)

This make be caused by changes to how newer versions of CMake generate the targets files.

[johnwason]

@Levi-Armstrong