Adding tentative atom_type_mass and atom_type_charge to section_atom_type

meta_info/nomad_meta_info/common.nomadmetainfo.json

@@ -128,6 +128,22 @@
       "superNames": [
         "section_atom_type"
       ]
+    }, {
+      "description": "Mass of the atom type in au.",
+      "dtypeStr": "C",
+      "name": "atom_type_mass",
+      "shape": [],
+      "superNames": [
+        "section_atom_type"
+      ]
+    }, {
+      "description": "Charge of the atom type in au.",
+      "dtypeStr": "C",
+      "name": "atom_type_charge",
+      "shape": [],
+      "superNames": [
+        "section_atom_type"
+      ]
     }, {
       "description": "velocities of the atoms.",
       "dtypeStr": "f",