[Orchestrator] - Create a librabry in core orchestrator

Create a library that holds all methods that are

• common to multiple files (eg: getArrayValuesRecursive() from Notifications and Reminder)
• not related to the tool itself (eg: tokenBranchExist() from Reminder)

changed milestone to %FusionDirectory Orchestrator 1.2

added enhancement label

assigned to @tdockx

added PJ1802-0188 label

assigned to @oalexa and unassigned @tdockx

created branch 73-orchestrator-create-a-librabry-in-core-orchestrator to address this issue

mentioned in merge request !80 (merged)

added 1h of time spent

changed time estimate to 1d

added 3h of time spent

mentioned in merge request !85