Change field response from flat map to list of field objects

[Akron]

Krill currently returns fields both as flat mapped values and as a list of fields. For API v1.1, this should only return field objects.

{
    "@context": "http://korap.ids-mannheim.de/ns/KoralQuery/v0.3/context.jsonld",
    "meta": {},
    "hasSnippet": true,
    "hasTokens": false,
    "matchID": "match-WUD17/D96/99578-p1829-1830",
    "context": {
        "left": [
            "token",
            6
        ],
        "right": [
            "token",
            6
        ]
    },
    "snippet": "<span class=\"context-left\"><span class=\"more\"></span>Handelshafen bildet ein Kopfbau, der im </span><span class=\"match\"><mark>Wasser</mark></span><span class=\"context-right\"> steht. Er bildet einen markanten Abschluss<span class=\"more\"></span></span>",
    "fields": [
        {
            "@type": "koral:field",
            "key": "ID"
        },
        {
            "@type": "koral:field",
            "key": "textSigle",
            "type": "type:string",
            "value": "WUD17/D96/99578"
        },
        {
            "@type": "koral:field",
            "key": "corpusID"
        },
        {
            "@type": "koral:field",
            "key": "author",
            "type": "type:text",
            "value": "Dr. Karl-Heinz Hochhaus, u.a."
        },
        {
            "@type": "koral:field",
            "key": "title",
            "type": "type:text",
            "value": "Benutzer Diskussion:Dr. Karl-Heinz Hochhaus/Archiv"
        },
        {
            "@type": "koral:field",
            "key": "subTitle"
        },
        {
            "@type": "koral:field",
            "key": "textClass",
            "type": "type:keywords",
            "value": [
                "staat-gesellschaft",
                "biographien-interviews"
            ]
        },
        {
            "@type": "koral:field",
            "key": "pubPlace",
            "type": "type:string",
            "value": "URL:http://de.wikipedia.org"
        },
        {
            "@type": "koral:field",
            "key": "pubDate",
            "type": "type:date",
            "value": "2017-07-01"
        },
        {
            "@type": "koral:field",
            "key": "availability",
            "type": "type:string",
            "value": "CC-BY-SA"
        },
        {
            "@type": "koral:field",
            "key": "layerInfos",
            "type": "type:store",
            "value": "corenlp/c=spans corenlp/p=tokens corenlp/s=spans dereko/s=spans malt/d=rels marmot/m=tokens marmot/p=tokens opennlp/p=tokens opennlp/s=spans tt/l=tokens tt/p=tokens"
        },
        {
            "@type": "koral:field",
            "key": "docSigle",
            "type": "type:string",
            "value": "WUD17/D96"
        },
        {
            "@type": "koral:field",
            "key": "corpusSigle",
            "type": "type:string",
            "value": "WUD17"
        }
    ],
    "textSigle": "WUD17/D96/99578", // deprecated
    "author": "Dr. Karl-Heinz Hochhaus, u.a.",  // deprecated
    "title": "Benutzer Diskussion:Dr. Karl-Heinz Hochhaus/Archiv",  // deprecated
    "textClass": "staat-gesellschaft biographien-interviews",  // deprecated
    "pubPlace": "URL:http://de.wikipedia.org",  // deprecated
    "pubDate": "2017-07-01",  // deprecated
    "availability": "CC-BY-SA",  // deprecated
    "layerInfos": "corenlp/c=spans corenlp/p=tokens corenlp/s=spans dereko/s=spans malt/d=rels marmot/m=tokens marmot/p=tokens opennlp/p=tokens opennlp/s=spans tt/l=tokens tt/p=tokens",  // deprecated
    "docSigle": "WUD17/D96",  // deprecated
    "corpusSigle": "WUD17"  // deprecated
}

This probably needs to be implemented in Krill for performance.