Fix cmd argument quoting in Paket.Restore.targets
Fix cmd argument quoting in Paket.Restore.targets

The line that runs `paket restore` in Paket.Restore.targets needs to
wrap the path to the .csproj file in quotes if its path has spaces.

thinkbeforecoding/Paket,NatElkins/Paket,baronfel/Paket,0x53A/Paket,snowcrazed/Paket,isaacabraham/Paket,Thorium/Paket,snowcrazed/Paket,0x53A/Paket,NatElkins/Paket,mrinaldi/Paket,isaacabraham/Paket,Thorium/Paket,lexarchik/Paket,artur-s/Paket,0x53A/Paket,sergey-tihon/Paket,NatElkins/Paket,mrinaldi/Paket,snowcrazed/Paket,Thorium/Paket,isaacabraham/Paket,vbfox/Paket,lexarchik/Paket,mrinaldi/Paket,baronfel/Paket,cloudRoutine/Paket,theimowski/Paket,jam40jeff/Paket,Stift/Paket,thinkbeforecoding/Paket,fsprojects/Paket,simonhdickson/Paket,artur-s/Paket,cloudRoutine/Paket,inosik/Paket,thinkbeforecoding/Paket,Stift/Paket,simonhdickson/Paket,Stift/Paket,vbfox/Paket,NatElkins/Paket,inosik/Paket,lexarchik/Paket,theimowski/Paket,mrinaldi/Paket,Thorium/Paket,isaacabraham/Paket,cloudRoutine/Paket,vbfox/Paket,jam40jeff/Paket,cloudRoutine/Paket,vbfox/Paket,lexarchik/Paket,snowcrazed/Paket,simonhdickson/Paket,0x53A/Paket,thinkbeforecoding/Paket,fsprojects/Paket,sergey-tihon/Paket,Stift/Paket,simonhdickson/Paket