Material: mat card template for material editor, move to a much more pythonic one

src/Mod/Material/importFCMat.py

@@ -22,7 +22,7 @@
 
 
 import FreeCAD
-import Material
+from materialtools.cardutils import get_material_template
 import os
 import sys
 if sys.version_info.major >= 3:
@@ -151,17 +151,15 @@ def write(filename, dictionary, write_group_section=True):
 
     # sort the data into sections
     contents = []
-    tree = Material.getMaterialAttributeStructure()
-    MatPropDict = tree.getroot()
-    for group in MatPropDict.getchildren():
-        groupName = group.attrib['Name']
+    template_data = get_material_template()
+    for group in template_data:
+        groupName = list(group.keys())[0]  # group dict has only one key
         contents.append({"keyname": groupName})
         if groupName == "Meta":
             header = contents[-1]
-        elif groupName == "User defined":
+        elif groupName == 'UserDefined':
             user = contents[-1]
-        for proper in group.getchildren():
-            properName = proper.attrib['Name']
+        for properName in group[groupName]:
             contents[-1][properName] = ''
     for k, i in dictionary.items():
         found = False