add popup for nuget install nuget.exe dialog
add popup for nuget install nuget.exe dialog

JetBrains/teamcity-nuget-support,JetBrains/teamcity-nuget-support,stormleoxia/teamcity-nuget-support,JetBrains/teamcity-nuget-support,JetBrains/teamcity-nuget-support,stormleoxia/teamcity-nuget-support,stormleoxia/teamcity-nuget-support