Workflow and device communication: Robustness and performance update

[schote]

Improved dagster workflow implementation to increase performance:

• Define reconstruction job as asset
• Define ISMRMRD data as asset
• Implement IO manager for mrpro IData (save/load DICOM result)
• Implement sensors which listen to run status

User Interface:

• Make device parameters adjustable
• Fix device status in status bar (sometimes the selected device disappears)
• Dropdown for task result selection
• Add timestamp of displayed result (MRD/DICOM)
• Dicom Viewer result selection from history
• Rearrangement of tasks by drag and drop (in template and acquisition view)
• Added calibrations to acquisition task
• Added a new Library view which merges sequence, device and template view
• Download and export options

Device client improvements (WS communication):

• Add application level heartbeat mechanism to track device status
• Run scan callback and file upload as background tasks (non blocking)
• Add device state machine
• Add file upload queue
• Allow multiple uploads within one scan callback

Data export

• Added DICOM download
• Added ISMRMRD download
• Added DICOM export to XNAT database (tested with XNAT4Tests)

[chdinh]

Awesome! - Almost too large to review X-)