adding GL headers in platform.cpp
adding GL headers in platform.cpp

victorv/arrayfire,arrayfire/arrayfire,ghisvail/arrayfire,munnybearz/arrayfire,ghisvail/arrayfire,ghisvail/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,hshindo/arrayfire,merlin-ext/arrayfire,shehzan10/arrayfire,shehzan10/arrayfire,arrayfire/arrayfire,ghisvail/arrayfire,merlin-ext/arrayfire,bkloppenborg/arrayfire,mrgloom/arrayfire,merlin-ext/arrayfire,marbre/arrayfire,jramapuram/arrayfire,shehzan10/arrayfire,pentschev/arrayfire,umar456/arrayfire,victorv/arrayfire,arrayfire/arrayfire,victorv/arrayfire,pombredanne/arrayfire,hshindo/arrayfire,9prady9/arrayfire,umar456/arrayfire,9prady9/arrayfire,pentschev/arrayfire,mrgloom/arrayfire,hshindo/arrayfire,jramapuram/arrayfire,bkloppenborg/arrayfire,mrgloom/arrayfire,pentschev/arrayfire,jramapuram/arrayfire,bkloppenborg/arrayfire,marbre/arrayfire,pombredanne/arrayfire,marbre/arrayfire,pombredanne/arrayfire,9prady9/arrayfire,pombredanne/arrayfire,shehzan10/arrayfire,umar456/arrayfire,victorv/arrayfire,umar456/arrayfire,hshindo/arrayfire,bkloppenborg/arrayfire,munnybearz/arrayfire,jramapuram/arrayfire,marbre/arrayfire,pentschev/arrayfire,mrgloom/arrayfire,merlin-ext/arrayfire,munnybearz/arrayfire