add graceful dependency
add graceful dependency

ChrisSchinnerl/Sia,rivine/rivine,NebulousLabs/Sia,Mingling94/Sia,rivine/rivine,cyrozap/Sia,ericflo/Sia,MrStrong/Sia,mtlynch/Sia,MrStrong/Sia,ericflo/Sia,kustomzone/Sia,mharkus/Sia,mnsl/Sia,johnathanhowell/Sia,mnsl/Sia,ChrisSchinnerl/Sia,NebulousLabs/Sia,mharkus/Sia,mtlynch/Sia