simos: add mapping for windows os type
simos: add mapping for windows os type

Like unknown we use the general SimOS, it might be subclassed later on
(like SimPosix) if needed, on the mean time let's provide the minimum
required.

schieb/angr,chubbymaggie/angr,angr/angr,cureHsu/angr,terry2012/angr,tyb0807/angr,f-prettyland/angr,axt/angr,avain/angr,iamahuman/angr,avain/angr,axt/angr,iamahuman/angr,haylesr/angr,mingderwang/angr,angr/angr,terry2012/angr,chubbymaggie/angr,fjferrer/angr,angr/angr,cureHsu/angr,tyb0807/angr,haylesr/angr,mingderwang/angr,axt/angr,iamahuman/angr,xurantju/angr,chubbymaggie/angr,f-prettyland/angr,lowks/angr,GuardianRG/angr,schieb/angr,fjferrer/angr,GuardianRG/angr,zhuyue1314/angr,xurantju/angr,tyb0807/angr,zhuyue1314/angr,lowks/angr,f-prettyland/angr,schieb/angr