Greece file format convertions

Misc convertions of Greece file formats.

Kthmatologio json export Fix

Fixes the format of json file exported from kthmatologio site https://maps.ktimatologio.gr/

sample json input

{
"displayFieldName": "",
"geometryType": "esriGeometryPolygon",
"spatialReference": {
    "wkid": 2100
},
"fields": [
    {
    "name": "KAEK",
    "type": "esriFieldTypeString",
    "length": 12
    },
    {
    "name": "AREA",
    "type": "esriFieldTypeDouble"
    }
],
"features": [
    {
    "attributes": {
        "KAEK": "200610301013",
        "AREA": 5057.91
    },
    "geometry": {
        "rings": [
        [
            [
            "224806.77",
            "4397865.34"
            ],
            [
            "224832.06",
            "4397825.50"
            ],
            [
            "224806.67",
            "4397811.65"
            ],

sample json output

{
"displayFieldName" : "",
"geometryType" : "esriGeometryPolygon",
"spatialReference" : {
    "wkid" : 2100
},
"fields" : [
    {
    "name" : "KAEK",
    "type" : "esriFieldTypeString",
    "length" : 12
    },
    {
    "name" : "AREA",
    "type" : "esriFieldTypeDouble"
    }
],
"features" : [
    {
    "attributes" : {
        "KAEK" : "200610301013",
        "AREA" : 5.0579099999999999E+003
    },
    "geometry" : {
        "rings" : [
        [
            [
            2.2480676999999999E+005,
            4.3978653399999999E+006
            ],
            [
            2.2483206000000000E+005,
            4.3978255000000000E+006
            ],
            [
            2.2480667000000001E+005,
            4.3978116500000004E+006
            ],