Endpoint for checking author of specific atom (Verifiable Credentials)

[joepio]

Issue in docs

• [ ] User can enter the path for an Atom in the endpoint
• [ ] After entering, a dynamic resource is constructed which shows the author, the author date, the signature, the commit.

#95 #73 #42

Edit: we now have lastCommit, which helps to find the latest Commit for any resource. However, this is not linked to any specific property. So you can see who made the last adjustment, but not necessarily who made the last adjustment to some specific property.