Skip headings in `wingetcreate show` command

[mdanish-kh]

Description of the new feature / enhancement

wingetcreate show can be used in automation scenarios. For that purpose, it's output should be one that can be cleanly parsed. Current output of wingetcreate show includes headings which were originally intended for user reading experience. I think we should remove them in favor of output that is parsed more cleanly in automation scenario

While the YAML output is still parse-able, the JSON output looks like

Installer Manifest:
{
  ...
}

Default Locale (en-US) Manifest:
{
   ...
}

Version Manifest:
{
   ...
}

The headings can be replaced by something that is easier to deal with in automation scenarios, maybe something like:

{
  "InstallerManifest": {
    ...
  },
  "DefaultLocaleManifest": {
    ...
  },
  "LocaleManifests": [
    {
        ...
    },
    {
        ...
    }
  ],
  "VersionManifest": {
      ...
  }
}

Proposed technical implementation details

No response