DEICH-6114 Nytt API+refaktorert kodebase
The enum contains al possible formats, and in addition the parser, model and json converter supliers (since a new instance needs to be provided for each parsing/conversion). The format is defined as a property, and will be autowired by Spring. More concise parsing and conversion handling.
Note, Search tests are broken - even still they run green :) Needs to be fixed as new test architecture comes to place.
Closes DEICH-6114