Blacklist the columns from public

[benhaynes]

From directus created by shushant : directus/directus#2180

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Version Info

• Directus version and branch (Or commit hash): 6.4.2
• PHP version: 5.6.36
• MySQL version: 5.7.19
• Web server: Apache
• OS name and version: Windows 10

Expected Behavior

I don't want certain columns to be exposed publicly

Actual Behavior

Please look at the screenshot i have attached.
I have read blacklisted the attachment column but whenever i browse the endpoints that columns is still there

{
    "meta": {
        "table": "products",
        "type": "collection",
        "total": 2,
        "Deleted": 2,
        "Published": 2,
        "Draft": 0,
        "total_entries": 4
    },
    "data": [
        {
            "id": 3,
            "status": 1,
            "sort": null,
            "name": "Yoga Tips",
            "attachment": {
                "meta": {
                    "table": "directus_files",
                    "type": "item"
                },
                "data": {
                    "id": 2,
                    "status": 1,
                    "name": "00000000002.PNG",
                    "title": "Capture",
                    "location": "",
                    "caption": "",
                    "type": "image\/png",
                    "charset": "binary",
                    "tags": "",
                    "width": 476,
                    "height": 439,
                    "size": 17543,
                    "embed_id": null,
                    "user": 1,
                    "date_uploaded": "2018-07-13T09:26:42-04:00",
                    "storage_adapter": "local",
                    "url": "\/storage\/uploads\/00000000002.PNG",
                    "thumbnail_url": "\/storage\/uploads\/thumbs\/2.PNG",
                    "old_thumbnail_url": "\/storage\/uploads\/thumbs\/00000000002-PNG-160-160-true.jpg",
                    "html": null
                }
            },
            "category": {
                "meta": {
                    "table": "category",
                    "type": "item"
                },
                "data": {
                    "id": 1,
                    "status": 1,
                    "sort": null,
                    "name": "Kids",
                    "slug": "kids"
                }
            }
        },
        {
            "id": 4,
            "status": 1,
            "sort": null,
            "name": "kshushant",
            "attachment": {
                "meta": {
                    "table": "directus_files",
                    "type": "item"
                },
                "data": {
                    "id": 3,
                    "status": 1,
                    "name": "dca9ee73d2b97a10448dc82283b54e48.PNG",
                    "title": "Capture",
                    "location": "",
                    "caption": "",
                    "type": "image\/png",
                    "charset": "binary",
                    "tags": "",
                    "width": 476,
                    "height": 439,
                    "size": 17543,
                    "embed_id": null,
                    "user": 1,
                    "date_uploaded": "2018-07-13T10:24:35-04:00",
                    "storage_adapter": "local",
                    "url": "\/storage\/uploads\/dca9ee73d2b97a10448dc82283b54e48.PNG",
                    "thumbnail_url": "\/storage\/uploads\/thumbs\/3.PNG",
                    "old_thumbnail_url": "\/storage\/uploads\/thumbs\/dca9ee73d2b97a10448dc82283b54e48-PNG-160-160-true.jpg",
                    "html": null
                }
            },
            "category": {
                "meta": {
                    "table": "category",
                    "type": "item"
                },
                "data": {
                    "id": 2,
                    "status": 1,
                    "sort": null,
                    "name": "Sports",
                    "slug": null
                }
            }
        }
    ]
}

But in case of other usergroup which requires access token column is hidden from endpoint

Steps to Reproduce

Schema Dump, Logs, or Screenshots