Make ProxyCache public since V3 code need access to sync it with V3 proxy cache.
Make ProxyCache public since V3 code need access to sync it with V3 proxy cache.

indsoft/NuGet2,chocolatey/nuget-chocolatey,indsoft/NuGet2,chocolatey/nuget-chocolatey,chocolatey/nuget-chocolatey,chocolatey/nuget-chocolatey,chocolatey/nuget-chocolatey,chocolatey/nuget-chocolatey,indsoft/NuGet2,indsoft/NuGet2,indsoft/NuGet2,indsoft/NuGet2