Create Recipe validator

[lorenaqendro]

Description

Create recipe validator that checks that the values in the recipe are correct before running it. ATM we only check if the json schema of the recipe is valid, but we can validate the values for provider, importer, subjectType, datasourceId.

We would like to keep the comments in the json recipes to help understanding them better. Therefore the library used should allow the comments. E.g. https://github.com/FasterXML/jackson-core/wiki/JsonParser-Features

[Algogator]

That would need to be changed in this file https://github.com/FutureCitiesCatapult/TomboloDigitalConnector/blob/master/src/main/java/uk/org/tombolo/recipe/DataExportRecipeValidator.java right?