Support for arbitrary file upload in server mode

[ianling]

It would be useful for me if cdxgen supported arbitrary file uploads in server mode. For example, uploading a package.json file from a Javascript project, or a requirements.txt file from a Python project. Essentially, skipping the git clone and file searching steps and instead being provided one or more files directly.

[prabhu]

Sounds scary to add this to cdxgen server directly. You can always upload first and run cdxgen with path argument. Any issues with that.

[ianling]

It doesn't seem any more scary to me at a glance than the cdxgen server cloning an arbitrary git repo. I can't imagine anyone is running cdxgen server exposed to the internet.