Add pCloud as a storage provider

[JAP1st]

pCloud (https://www.pcloud.com/) is a swiss cloud storage provider with enhanced privacy capabilities (client-side TLS/SSL encryption) that comply with the EU General Data Protection Regulation. The free plan offers synchronisation, file sharing and file versioning through a web version or a cross-platform application.

Note: I do not work or collaborate with pCloud, I'm just a OSF user that would like to see pCloud integrated since I use it to store my academic documents.

[Johnetordoff]

We don't have any plans to add an integration for pCloud in the near future. Currently we are exploring ways to support community maintained back-end storage addons, so we're unlikely to create new ones under the current scheme unless a partner organization asks for one or a large number of users demonstrate this is something that truly need to use via our site.

[JAP1st]

Hi, thanks for the feedback, it makes sense.