Added a unitTest script integrated into the Matlab test environment. The following functionalities are tested:

- All Osprey Modules (with an optional Segmentation test to increase speed)
- GUI start up
- 1 representative plot for each output

Currently 2 test jobFiles are included each with 2 subjects:
- UnEdited PRESS
- GABA-edited MEGA

To be done:
- Setup CI workflow to automatically check functionality of Osprey after each commit. This will be based on a quick test on the UnEdited data without segmentation
- A full test of both jobFiles in case a merge into the master branch is performed
- Add a HERMES test