create a json serializer for each of the tree schema. Can be strategies or facto...

[github-actions]

https://api.github.com/BKK-WeSpace/tree-population/blob/db075d9fb052ebae93b4722019b5d110096736bf/src/server/models/trees/trees.ts#L18

     * The id of this tree in the Vallaris database.
     */
    id: string;
    /**
     * Because we try to be opened to as many databases as possible, this properties object
     * will be a combination of all vendor-specific tree schemas.
     *
     * TODO create a json serializer for each of the tree schema. Can be strategies or factories, as long as they work and not too verbose...
     */
    properties?: WeSpaceTreeSchema & OpenStreetMapTreeSchema;
}