feat(Simulator): add F1 control hint toggle
feat(Simulator): add F1 control hint toggle

gpvigano/SteamVR_Unity_Toolkit,gomez-addams/SteamVR_Unity_Toolkit,thestonefox/VRTK,red-horizon/VRTK,TMaloteaux/SteamVR_Unity_Toolkit,adamjweaver/VRTK,gpvigano/VRTK,Fulby/VRTK,thestonefox/SteamVR_Unity_Toolkit,virror/VRTK,Innoactive/IA-unity-VR-toolkit-VRTK,mattboy64/SteamVR_Unity_Toolkit