New structure for meta data

[callmekatootie]

From @dushyantb on Slack:

{
  "metadata": {
    "testType": "provisional",
    "public": {
            
    },
    "private": {
      
    }
 
}

^ new metadata structure. Instead of filtering out entire metadata, we will only filter the private attribute for non admin and non copilots.

[callmekatootie]

This will be for the review resource

[callmekatootie]

PR ready: #138