Allow renter host count and renewwindow to be set from api
Allow renter host count and renewwindow to be set from api

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