model.base: Add new attributes to class AdministrativeInformation

Version 3.0 of the spec introduces the 2 new attributes
- `creator`
- `template_id`
to class `AdministrativeInformation`.
This commit adds them to the class.

basyx/aas/model/base.py

@@ -1103,13 +1103,26 @@ class AdministrativeInformation(HasDataSpecification):
 
     :ivar version: Version of the element.
     :ivar revision: Revision of the element.
+    :ivar creator: The subject ID of the subject responsible for making the element
+    :ivar template_id: Identifier of the template that guided the creation of the element
+
+    *Note:*  In case of a submodel, the template ID is the identifier of the submodel template that guided the
+      creation of the submodel.
+
+    *Note:* The submodel template ID is not relevant for validation. Here, the Submodel/semanticId shall be used
+
+    *Note:* Usage of the template ID is not restricted to submodel instances.
+      The creation of submodel templates can also be guided by another submodel template.
+
     :ivar embedded_data_specifications: List of Embedded data specification.
      used by the element.
     """
 
     def __init__(self,
                  version: Optional[VersionType] = None,
                  revision: Optional[RevisionType] = None,
+                 creator: Optional[Reference] = None,
+                 template_id: Optional[Identifier] = None,
                  embedded_data_specifications: Iterable[EmbeddedDataSpecification] = ()):
         """
         Initializer of AdministrativeInformation
@@ -1122,6 +1135,8 @@ def __init__(self,
         self.version: Optional[VersionType] = version
         self._revision: Optional[RevisionType]
         self.revision = revision
+        self.creator: Optional[Reference] = creator
+        self.template_id: Optional[Identifier] = template_id
         self.embedded_data_specifications: List[EmbeddedDataSpecification] = list(embedded_data_specifications)
 
     def _get_revision(self):