Enable transfer tool to operate in current working directory to backup files to S3 Glacier or upload files to Wasabi

[pli888]

User story

As a curator
I want the transfer tool to operate in current working directory, e.g. a user dropbox directory
So that the transfer tool works in the same manner as other curator tools on bastion server

Acceptance criteria

Given I have files in a user directory at /share/dropbox/ on bastion server
When I am in the /share/dropbox/userx directory and execute the transfer tool without specifying the path
Then the files in the /share/dropbox/userx directory are transferred into Wasabi or S3 Glacier

Additional Info

Transfer tools requires a --sourcePath parameter to operate, e.g.:

$ transfer --doi 102498 --sourcePath /share/dropbox/user5/ --wasabi --apply

The tool needs to operate on files in current working directory in order to behave in the same way as other curator tools on bastion server. I.e:

$ cd /share/dropbox/user5
$ transfer --doi 102498  --wasabi --apply

--sourcePath should be optional