This web2all/shell package requires the web2all/framework (https://github.com/web2all/framework). It used to be proprietary software but now it has been released to the public domain under a MIT license.
This pacckage is no longer actively maintained. Most likely it is only of interest if you own software created by Web2All B.V. which was built using these classes.
This package contains a (shell) commandline argument and switches parsing class. Poor mans implementation of something like perls Getopt::Long.
Web2All framework is open-sourced software licensed under the MIT license (https://opensource.org/licenses/MIT).