Format-Json witthout Newtonsoft.Json

Format-Json.ps1

# Taken from: https://github.com/PowerShell/PowerShell/issues/2736
function Format-Json([Parameter(Mandatory, ValueFromPipeline)][String] $json) {
  $indent = 0;
  ($json -Split '\n' |
    % {
      if ($_ -match '[\}\]]') {
        # This line contains  ] or }, decrement the indentation level
        $indent--
      }
      $line = (' ' * $indent * 2) + $_.TrimStart().Replace(':  ', ': ')
      if ($_ -match '[\{\[]') {
        # This line contains [ or {, increment the indentation level
        $indent++
      }
      $line
  }) -Join "`n"
}