deposit: DataCite v3 minting

* Changes DOI minting to use DataCite Metadata Kernel 3.0
  instead of 2.2.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
base: F1000Research logo

* Adds F1000Research logo to records in their community when a related
  article exists.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
global: pidstore configuration

* Adds pidstore configuration specific to Zenodo.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>