Add API password authentication to siac
Add API password authentication to siac

mtlynch/Sia,ChrisSchinnerl/Sia,mnsl/Sia,mnsl/Sia,MrStrong/Sia,rivine/rivine,NebulousLabs/Sia,mharkus/Sia,ericflo/Sia,rivine/rivine,mtlynch/Sia,mharkus/Sia,ericflo/Sia,ChrisSchinnerl/Sia,MrStrong/Sia,NebulousLabs/Sia