[Task]: extend configuration perspective documentation

### What needs to happen?

the configuration perspective documentation lists what can be configured, but doesn't go into detail on the configuration options. For example, the various VFS configuration options are undocumented.

https://hop.apache.org//manual/latest/vfs/google-cloud-storage-vfs.html

### Issue Priority

Priority: 2

### Issue Component

Component: Documentation

Start with the Google Cloud Storage VFS documentation page linked in the issue and review the configuration perspective documentation that lists configurable items. Document the missing details for the VFS configuration options, with completion shown by those options being described in the relevant documentation.

Written by the indexing model from the issue text.