On `dotnet new classlib` instead of creating a useless `Class1.cs` create a file named after the directory the file was created in.

### Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is.

`mkdir ApiClient/`
`cd ApiClient`
`dotnet new classlib`
*creates ApiClient.cs*

### Describe the solution you'd like
`mkdir ApiClient/`
`cd ApiClient`
`dotnet new classlib`
*creates ApiClient.cs instead of useless garbo Class1.cs that no one will ever use ever in their life.*

### Additional context
Add any other context or screenshots about the feature request here.