Introduces a specialized Optional serializer because Jackson was only using public getter-like functions, which happened to be only isPresent and isEmpty, making any results useless.
Changes
None.
Additions
An Optional serializer
Registration in the Core class
Test and Review
To be filled in by the reviewers
All of the methods are commented to expectation
The methods are tested to satisfaction
There are no unnecessary files present in the MR
The continuous integration has no problems with the MR
The MR is filled in as requested (including labels, milestones, and reviewers)
