Newest OHIF Version has new setSynchronizer method name on

[pedrokohler]

https://github.com/OHIF/Viewers/blob/43c882ac87f395f3a7bb88660b025975d4ce6573/extensions/cornerstone/src/services/SyncGroupService/SyncGroupService.ts#L73

We use this function that was previously called setSynchronizer and it has now changed to addSynchronizerType. It's used in the preRegistration hook.

We probably need to update it to the most recent change or change it back on OHIF because this is currently breaking (found it our while doing the Fuberlin merge)