`dotnet new` generates a `dot file` when run from root directory

[TheRealPiotrP]

On linux machine with root access:

• cd /
• dotnet new console
• ls

Expected

Listed files include a csproj file

Actual

The generated csproj file is called .csproj. Since this is a dot file, it is hidden from output of ls unless special flags are passed.

[TheRealPiotrP]

Related to #381

[mlorbetske]

What's the suggested behavior here? Should it fail and indicate that --name must be specified (as it wasn't and the root directory has no name) or should it just use the original names of the files from the template content?