RFS: python-click-default-group: Extension for Python click adding default subcommand to group

[Adam Cécile]

Hello,

Could someone please upload this little package ? It's a dependency of 
xsdata, an awesome XML/dataclasses library I'd like to get into the archive.

ITP: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=976443

Salsa: 
https://salsa.debian.org/python-team/packages/python-click-default-group


Thanks in advance,

Adam.