Dashboard: Create sib-dashboard component

Create a sib-dashboard component which will be used this way:

<sib-dashboard data-src='./path/to.json'></sib-dashboard>

Where ./path/to.json could be:

{
  "@id":"http://server/dashboards/",
  "@type":"ldp:Container",
  "ldp:contains":[
    {
      "@id": "http://server/dashboards/1/",
      "size": "3",
      "content": "Coucou.",
      "permissions":[{"mode":{"@type":"view"}}]
    },
    {
      "@id": "http://server/dashboards/2/",
      "size": "1",
      "content": "Coucou.",
      "permissions":[{"mode":{"@type":"view"}}]
    },
    {
      "@id": "http://server/dashboards/3/",
      "size": "2",
      "content": "Coucou.",
      "permissions":[{"mode":{"@type":"view"}}]
    }
  ],
  "@context":"https://cdn.happy-dev.fr/owl/hdcontext.jsonld"
}

Rendered this way: https://invis.io/3POVGBKAQD8#/334488442_DASHBOARD

With ./path/to.json, each box must contain a Coucou..

https://git.startinblox.com/components/sib-dashboard