Separate project archive folder for external samples

[Nicklas Nordborg]

The library preparation/sequencing wizards have support for processing external samples (RNA). In the end data files from the sequencing (FASTQ, etc) end up in the 'scanb' project archive folder. This is currently configured in the <project-archive> setting in the reggie-config.xml file and in the ProjectArchive fileserver item in BASE.

Since we are already generating different subfolder structures for regular and external samples it should not be too difficult to add settings for an 'external project archive'. Basically we need another configuration setting in the XML file (<external-project-archive>) and one more fileserver item (ExternalProjectArchive).