Modified v1.2.0
Upstream v1.2.0 with minor mods to allow use in hunter, plus update to package
configuration so won't attempt to create duplicate ZXing::Core targets even if
called multiple times on cmake via find_package()
Upstream v1.2.0 with minor mods to allow use in hunter, plus update to package
configuration so won't attempt to create duplicate ZXing::Core targets even if
called multiple times on cmake via find_package()