[build] Add cogl.h to the built sources list
[build] Add cogl.h to the built sources list

The main COGL header file is generated at configure time. If something
changes in the template, though, the file will not be regenerated.

Adding cogl.h to the BUILT_SOURCES list will allow the regeneration to
happen.

djdeath/clutter,dlespiau/clutter,tardyp/clutter,rkudiyarov/clutter_osx,Distrotech/clutter,Distrotech/clutter,heysion/clutter-clone,nobled/clutter,collects/clutter,djdeath/clutter,djdeath/clutter-android,djdeath/clutter-android,jigpu/clutter,GNOME/clutter,jigpu/clutter,kerrickstaley/clutter-vala,djdeath/clutter-multithreaded,spatulasnout/clutter,dlespiau/clutter,kerrickstaley/clutter-vala,Distrotech/clutter,dlespiau/clutter,rkudiyarov/clutter_osx,collects/clutter,heysion/clutter-clone,djdeath/clutter,djdeath/clutter-android,djdeath/clutter-multithreaded,rkudiyarov/clutter_osx,nobled/clutter,spatulasnout/clutter,jigpu/clutter,Distrotech/clutter,jigpu/clutter,nobled/clutter,djdeath/clutter,tardyp/clutter,jigpu/clutter,heysion/clutter-clone,GNOME/clutter,GNOME/clutter,tardyp/clutter,collects/clutter,spatulasnout/clutter,GNOME/clutter,djdeath/clutter-multithreaded,ebassi/clutter,kerrickstaley/clutter-vala,Distrotech/clutter,heysion/clutter-clone,djdeath/clutter,djdeath/clutter-multithreaded,djdeath/clutter-android,rkudiyarov/clutter_osx,ebassi/clutter,djdeath/clutter-android,spatulasnout/clutter,kerrickstaley/clutter-vala,jigpu/clutter,ebassi/clutter,heysion/clutter-clone,ebassi/clutter,collects/clutter,Distrotech/clutter,collects/clutter,djdeath/clutter,GNOME/clutter,spatulasnout/clutter,ebassi/clutter