atk specific things

meta_info/nomad_meta_info/atk.nomadmetainfo.json

@@ -6,5 +6,39 @@
     }, {
       "relativePath": "common.nomadmetainfo.json"
     }],
-  "metaInfos": [ ]
+  "metaInfos": [ {
+      "description": "Density convergence criteria to break the SCF cycle",
+      "dtypeStr": "f",
+      "name": "x_atk_density_convergence_criterion",
+      "shape": [],
+      "superNames": [
+        "section_method"
+      ]
+    }, {
+      "description": "Number of old densities in the density mixer",
+      "dtypeStr": "i",
+      "name": "x_atk_mix_old",
+      "shape": [],
+      "superNames": [
+        "section_method"
+      ]
+    }, {
+      "description": "Mixing weight in density mixer",
+      "dtypeStr": "f",
+      "name": "x_atk_mix_weight",
+      "shape": [],
+      "superNames": [
+        "section_method"
+      ]
+    }, {
+      "description": "Monkhorstpack grid sampling",
+      "dtypeStr": "i",
+      "name": "x_atk_monkhorstpack_sampling",
+      "shape": [
+        3
+      ],
+      "superNames": [
+        "section_method"
+      ]
+    }]
 }