Add declaration of clutter_binding_pool_get_type()
Add declaration of clutter_binding_pool_get_type()

The function is automagically created by G_DEFINE_TYPE(), but
it should also be declared in the header.

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