Transfer Manager with CDMI support

[rsmontero]

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Author Name: Florian Feldhaus (Florian Feldhaus)
Original Redmine Issue: 1018, https://dev.opennebula.org/issues/1018
Original Date: 2011-12-02
Original Assignee: Florian Feldhaus

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Integration of CDMI into a Transfer Manager to access images from storage with a CDMI interface.

Currently downloading of images from CDMI servers using a HTTP GET request is working with the SSH Transfer Manager. For more advanced scenarios the export capabilities of CDMI (see "CDMI Specification: Exported Protocols":http://cdmi.sniacloud.com/CDMI_Spec/13-Exported_Protocols/13-Exported_Protocols.htm) should be used by the Transport Manager. It can be integrated into the existing NFS Transport Manager or a new Transport Manager may be created.