Fix examples install directory post fetchcontent changes
Fix examples install directory post fetchcontent changes

umar456/arrayfire,9prady9/arrayfire,9prady9/arrayfire,umar456/arrayfire,arrayfire/arrayfire,umar456/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,umar456/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,arrayfire/arrayfire