optimize some array encoding
optimize some array encoding

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