Add class RemoteJobManagerFactory

[mantid-builder]

Original Reporter: @FedeMPouzols

This ticket is blocked by :

• TRAC11123

This ticket is blocks : TRAC9277, TRAC11064, TRAC11126, TRAC11373, TRAC11392

And/or clarify the role of FacilityInfo::getRemoteJobManager. EDIT: Conclusion about this is: at some point it will be removed (http://trac.mantidproject.org/mantid/ticket/11373, after or with http://trac.mantidproject.org/mantid/ticket/11392). It is being replaced with the RemoteJobManagerFactory.

In the remote algorithms, RemoteJobManager objects are being created via ConfigService::Instance().getFacility().getRemoteJobManager(name)

Follow the design/diagram on slide 19 of https://github.com/mantidproject/documents/blob/master/Presentations/SOS18/Mantid%20HPC%20Challenges.pptx

This new factory should behave like other factories in Mantid. It provides a Create(name) method that returns an IRemoteJobManager object (as a shared pointer).

[mantid-builder]

This issue was originally trac ticket 11124