Strongname sign Microsoft.Build.Net.CoreRuntimeTask (#2994)
Strongname sign Microsoft.Build.Net.CoreRuntimeTask (#2994)

* Strongname sign Microsoft.Build.Net.CoreRuntimeTask

Fixes https://github.com/dotnet/core-setup/issues/2820

ericstj/core-setup,MichaelSimons/core-setup,steveharter/core-setup,crummel/dotnet_core-setup,rakeshsinghranchi/core-setup,steveharter/core-setup,weshaggard/core-setup,MichaelSimons/core-setup,steveharter/core-setup,crummel/dotnet_core-setup,chcosta/core-setup,steveharter/core-setup,chcosta/core-setup,zamont/core-setup,chcosta/core-setup,crummel/dotnet_core-setup,ericstj/core-setup,steveharter/core-setup,weshaggard/core-setup,rakeshsinghranchi/core-setup,weshaggard/core-setup,ericstj/core-setup,zamont/core-setup,chcosta/core-setup,MichaelSimons/core-setup,zamont/core-setup,chcosta/core-setup,rakeshsinghranchi/core-setup,chcosta/core-setup,crummel/dotnet_core-setup,zamont/core-setup,wtgodbe/core-setup,ericstj/core-setup,rakeshsinghranchi/core-setup,wtgodbe/core-setup,rakeshsinghranchi/core-setup,rakeshsinghranchi/core-setup,ericstj/core-setup,wtgodbe/core-setup,wtgodbe/core-setup,weshaggard/core-setup,zamont/core-setup,zamont/core-setup,weshaggard/core-setup,weshaggard/core-setup,steveharter/core-setup,MichaelSimons/core-setup,crummel/dotnet_core-setup,wtgodbe/core-setup,MichaelSimons/core-setup,crummel/dotnet_core-setup,ericstj/core-setup,MichaelSimons/core-setup,wtgodbe/core-setup