Firing from ALL the pipes

Version 1.1 had only one method to properly use nodejs' pipes in the context of an asynchronous request, named pipeStream that would allow you to pipe data from a local readStream to a Nextcloud instance.

Release 1.2 introduces two new methods:

• downloadToStream and
• uploadFromStream replacing, and thereby deprecating pipeStream (which will remain available until nextcloud-link 2.0)