cmake GSPELL examples

fligger/FateInjector wxWidgets-3.2.0/build/cmake/init.cmake :568 

find_package(GSPELL)

wxWidgets/wxWidgets build/cmake/init.cmake :760 

find_package(GSPELL)

Ravbug/UnityHubNative wxWidgets/build/cmake/init.cmake :714 

find_package(GSPELL)