Add Manual Installation of Modules

[geboro]

Hello!

I am working from behind some nightmarish firewall at work, so macsydata keeps failing due to failure to verify the self-signed SSL certificates.

I imagine if macsydata can install modules NOT present in macsydata available semi-manually, then it would also be possible to install TXSScan, CONJScan, TFF and CasFinder, since they are available in the git repository.

However, I didn't manage to do this, since macsydata requires tarballs (I also tar-ed the cloned git repository but this diidn't work).

Could you provide some guidance on how to download the core models and install them semi-manually?

Cheers!