Setting IsPackable to false in websdk

[vijayrkn]

@mlorbetske

[mlorbetske]

We should run this by Daniel & Sayed - I imagine this is fine, as it's unlikely that people are packing web projects, but we should double check

[davidfowl]

I think this is fine.

[marcusien]

As said on my issue (https://github.com/dotnet/cli/issues/7539) , I don't think this behavior is fine cause there's no reason not to do it, and no documentation or message is produced when we try to pack a web project.

A web project can have "Console application" as Output type but we can also change it to be "Class library".

[DamonStamper]

This change has generated https://github.com/aspnet/websdk/issues/228.

The change affecting Microsoft.NET.Sdk.Web makes it annoying. Trying to be smarter than the end user and not telling the end user makes it irritating--especially when there are unintended side effects.

[bgoerdt]

It would be useful to have a warning stating that the web project is not configured to be packable when dotnet pack runs.

[robertbird]

Agree with @bgoerdt, would be really useful to see some output warning me that my project is not being packed intentionally.

I ran into this via https://github.com/dotnet/cli/issues/7539 when trying to pack my web project for Octopus Deploy