Host our own NuGet feed for packages that we need that aren't elsewhere yet (#1951)

* Stop hosting packages inside of here. Put them on a blob storage account instead.

Author: miniksa

NuGet.Config

@@ -5,7 +5,10 @@
         <!-- Add repositories here to the list of available repositories -->
 
         <!-- Dependencies that we must carry because they're not on public nuget feeds right now. -->
-        <add key="Static Package Dependencies" value="dep\packages" />
+        <!--<add key="Static Package Dependencies" value="dep\packages" />-->
+        
+        <!-- Use our own NuGet Feed -->
+        <add key="Windows Terminal NuGet Feed" value="https://terminalnuget.blob.core.windows.net/feed/index.json" />
 
         <!-- Internal NuGet feeds that may not be accessible outside Microsoft corporate network -->
         <!--<add key="TAEF - internal" value="https://microsoft.pkgs.visualstudio.com/DefaultCollection/_packaging/Taef/nuget/v3/index.json" />