Use code for property type definitions (#60)

* Added code_to_class_name utils function and testing

* Generated new properties with class naming corrected

bam_masterdata/cli/fill_masterdata.py

@@ -3,6 +3,7 @@
 import click
 
 from bam_masterdata.openbis import OpenbisEntities
+from bam_masterdata.utils import code_to_class_name
 
 
 class MasterdataCodeGenerator:
@@ -24,20 +25,6 @@ def __init__(self, url: str = ""):
             f"Loaded OpenBIS entities in `MasterdataCodeGenerator` initialization {elapsed_time:.2f} seconds\n"
         )
 
-    def _format_class_name(self, code: str) -> str:
-        """
-        Format the class name based on the `code` of the entity to follow Python snake case conventions.
-
-        Args:
-            code (str): The code of the entity.
-
-        Returns:
-            str: The formatted class name.
-        """
-        if "." in code:
-            code = code.split(".")[-1]
-        return code.title().replace("_", "").replace("$", "")
-
     def determine_parent_class(
         self, code: str, class_names: dict, default: str, lines: list
     ) -> tuple:
@@ -63,7 +50,7 @@ class will inherit from `parent_class`.
         parent_class = class_names.get(parent_code, default)
 
         # Format class name
-        class_name = self._format_class_name(code)
+        class_name = code_to_class_name(code)
         class_names[code] = class_name
 
         # If the parent class does not exist but the `code` shows some inheritance, we add a note for debugging
@@ -152,7 +139,7 @@ def generate_property_types(self) -> str:
                 continue
 
             # Format class name
-            class_name = self._format_class_name(code)
+            class_name = code_to_class_name(code, entity_type="property")
 
             # Add class definition
             lines.append(f"{class_name} = PropertyTypeDef(")