[advanced][databases][atnt] Add new version following V2 implementation

advanced/databases/atnt/6.json

+{
+    "description": "The AT&T Database of Faces",
+    "root_folder": "/idiap/group/biometric/databases/orl",
+    "protocols": [
+        {
+            "name": "idiap",
+            "template": "simple_face_recognition/1",
+            "views": {
+                "train": {
+                    "view": "Train",
+                    "parameters": {}
+                },
+                "templates": {
+                    "view": "Templates",
+                    "parameters": {}
+                },
+                "probes": {
+                    "view": "Probes",
+                    "parameters": {}
+                }
+            }
+        },
+        {
+            "name": "idiap_test_eyepos",
+            "template": "advanced_face_recognition/1",
+            "views": {
+                "train": {
+                    "view": "TrainEyePositions",
+                    "parameters": {}
+                },
+                "dev_templates": {
+                    "view": "TemplatesEyePositions",
+                    "parameters": {
+                        "group": "dev"
+                    }
+                },
+                "dev_probes": {
+                    "view": "ProbesEyePositions",
+                    "parameters": {
+                        "group": "dev"
+                    }
+                },
+                "test_templates": {
+                    "view": "TemplatesEyePositions",
+                    "parameters": {
+                        "group": "eval"
+                    }
+                },
+                "test_probes": {
+                    "view": "ProbesEyePositions",
+                    "parameters": {
+                        "group": "eval"
+                    }
+                }
+            }
+        }
+    ],
+    "schema_version": 2
+}
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advanced/databases/atnt/6.rst

+The AT&T Database of Faces
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