title: How to consolidate arrays under one single MultiLineString GeoJSON array using jq?
body: <p>There are coordinates within an array that are divided up between multiple GeoJSON <code>MultiLineString</code> structures. I would like to consolidate all the coordinates, maintaining them in their own array, under one single MultiLineString structure. How do i do this with <code>jq</code> ?</p>
  
  <p>This is the original file (modified for example purposes)</p>
  
  <pre><code>{
    "type": "FeatureCollection",
    "crs": {
      "type": "name",
      "properties": {
        "name": "urn:ogc:def:crs:OGC:1.3:CRS84"
      }
    },
  
    "features": [{
        "type": "Feature",
        "geometry": {
          "type": "MultiLineString",
          "coordinates": [
            [
              [-82.619152670413143, 29.568340757283536, 0.0],
              [-82.619147188198966, 29.568355832670516, 0.0],
              [-82.607558975018591, 29.580299204829011, 0.0]
            ]
          ]
        }
      },
      {
        "type": "Feature",
        "geometry": {
          "type": "MultiLineString",
          "coordinates": [
            [
              [-82.619152670413513, 29.568340757283536, 0.0],
              [-82.619490683489488, 29.568318912277654, 0.0],
              [-82.629348688631055, 29.569000553128618, 0.0]
            ]
          ]
        }
      },
      {
        "type": "Feature",
        "geometry": {
          "type": "MultiLineString",
          "coordinates": [
            [
              [-82.629348688631055, 29.569000553128618, 0.0],
              [-82.62943243076478, 29.568922074598046, 0.0],
              [-82.623065167913538, 29.56611193045412, 0.0]
            ]
          ]
        }
      },
      {
        "type": "Feature",
        "geometry": {
          "type": "MultiLineString",
          "coordinates": [
            [
              [-82.618039923193663, 29.563657436904819, 0.0],
              [-82.618306111861301, 29.565336028000189, 0.0],
              [-82.619152670413669, 29.568340757283639, 0.0]
            ]
          ]
        }
      },
      {
        "type": "Feature",
        "geometry": {
          "type": "MultiLineString",
          "coordinates": [
            [
              [-82.62306516791385, 29.566111930454156, 0.0],
              [-82.618758856449034, 29.563742939021793, 0.0],
              [-82.618212862210015, 29.563577318475456, 0.0]
            ]
          ]
        }
      }
    ]
  }
  </code></pre>
  
  <p>What I am trying to achieve: </p>
  
  <pre><code>{
    "type": "FeatureCollection",
    "crs": {
      "type": "name",
      "properties": {
        "name": "urn:ogc:def:crs:OGC:1.3:CRS84"
      }
    },
  
    "features": [{
        "type": "Feature",
        "geometry": {
          "type": "MultiLineString",
          "coordinates": [
            [
              [-82.619152670413143, 29.568340757283536, 0.0],
              [-82.619147188198966, 29.568355832670516, 0.0],
              [-82.607558975018591, 29.580299204829011, 0.0]
            ],
            [
              [-82.619152670413513, 29.568340757283536, 0.0],
              [-82.619490683489488, 29.568318912277654, 0.0],
              [-82.629348688631055, 29.569000553128618, 0.0]
            ],
            [
              [-82.629348688631055, 29.569000553128618, 0.0],
              [-82.62943243076478, 29.568922074598046, 0.0],
              [-82.623065167913538, 29.56611193045412, 0.0]
            ],
            [
              [-82.618039923193663, 29.563657436904819, 0.0],
              [-82.618306111861301, 29.565336028000189, 0.0],
              [-82.619152670413669, 29.568340757283639, 0.0]
            ],
            [
              [-82.62306516791385, 29.566111930454156, 0.0],
              [-82.618758856449034, 29.563742939021793, 0.0],
              [-82.618212862210015, 29.563577318475456, 0.0]
            ]
          ]
        }
      }
    ]
  }
  </code></pre>