Add more icons to check-icon-names
Add more icons to check-icon-names

These are icons which are used as GtkArrow replacement, and
icons used for the volume button.

alexlarsson/gtk,jessevdk/gtk,alexlarsson/gtk,Lyude/gtk-,ahodesuka/gtk,chergert/gtk,davidgumberg/gtk,Sidnioulz/SandboxGtk,jigpu/gtk,Sidnioulz/SandboxGtk,davidgumberg/gtk,grubersjoe/adwaita,ahodesuka/gtk,ahodesuka/gtk,davidgumberg/gtk,Adamovskiy/gtk,Adamovskiy/gtk,Lyude/gtk-,Adamovskiy/gtk,Adamovskiy/gtk,Sidnioulz/SandboxGtk,alexlarsson/gtk,jadahl/gtk,grubersjoe/adwaita,jadahl/gtk,davidgumberg/gtk,jadahl/gtk,jessevdk/gtk,jessevdk/gtk,chergert/gtk,alexlarsson/gtk,Lyude/gtk-,jessevdk/gtk,grubersjoe/adwaita,jadahl/gtk,jadahl/gtk,grubersjoe/adwaita,Lyude/gtk-,grubersjoe/adwaita,ahodesuka/gtk,Adamovskiy/gtk,alexlarsson/gtk,davidgumberg/gtk,jessevdk/gtk,Lyude/gtk-,chergert/gtk,grubersjoe/adwaita,Adamovskiy/gtk,ahodesuka/gtk,chergert/gtk,Adamovskiy/gtk,chergert/gtk,jessevdk/gtk,Sidnioulz/SandboxGtk,Sidnioulz/SandboxGtk,davidgumberg/gtk,jigpu/gtk,alexlarsson/gtk,Lyude/gtk-,grubersjoe/adwaita,chergert/gtk,jadahl/gtk,grubersjoe/adwaita,jigpu/gtk,jigpu/gtk,ahodesuka/gtk,jigpu/gtk,ahodesuka/gtk,Lyude/gtk-,chergert/gtk,jadahl/gtk,jigpu/gtk,davidgumberg/gtk,davidgumberg/gtk,jigpu/gtk,Lyude/gtk-,chergert/gtk,Adamovskiy/gtk,Sidnioulz/SandboxGtk,ahodesuka/gtk,alexlarsson/gtk,jadahl/gtk,jessevdk/gtk,alexlarsson/gtk,jigpu/gtk