bring measurements back to trajectory (#60)

### Briefly, what does this PR introduce?
Move measurements from Track (which is introduced in
#58) back to Trajectory, and add back
outliers.


### What kind of change does this PR introduce?
- [ ] Bug fix (issue #__)
- [ ] New feature (issue #__)
- [ ] Documentation update
- [x ] Other: partially revert a change

### Please check if this PR fulfills the following:
- [ ] Tests for the changes have been added
- [ ] Documentation has been added / updated
- [x ] Changes have been communicated to collaborators. -- This change
is communicated to Joe Osborn.

### Does this PR introduce breaking changes? What changes might users
need to make to their code?
CKFtracking.cc needs to be updated to take the new data structure.

### Does this PR change default behavior?

---------

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

edm4eic.yaml

@@ -385,7 +385,9 @@ datatypes:
       - float             measurementChi2   // Chi2 for each of the measurements
       - float             outlierChi2       // Chi2 for each of the outliers
     OneToManyRelations:
-      - edm4eic::TrackParameters trackParameters // Associated track parameters, if any
+      - edm4eic::TrackParameters trackParameters            // Associated track parameters, if any
+      - edm4eic::Measurement2D measurements_deprecated      // Measurements that were used for this track. Will move this to the edm4eic::Track
+      - edm4eic::Measurement2D outliers_deprecated          // Measurements that were not used for this track. Will move this to the edm4eic::Track
 
   edm4eic::TrackParameters:
     Description: "ACTS Bound Track parameters"