Add support for GridSample + Minor changes

• Add binding of GridSample aidge_onnx#44 (closed)
• Expose mem_manager and save_to_json
• Fix typo in attribute name for GridSample
• Explicit error during code generation:
  • Raise error stating if a template file is not found
  • Add context on which operator failed to generate a file (instead of just having Jinja error)

aidge_core/export_utils/code_generation.py

@@ -19,6 +19,8 @@ def generate_file(file_path: Union[Path, str], template_path: Union[Path, str],
         file_path = Path(file_path)
     if isinstance(template_path, str):
         template_path = Path(template_path)
+    if not template_path.exists():
+        raise ValueError(f"Path to template {template_path} is not valid !")
     # Make dir
     file_path.parent.mkdir(parents=True, exist_ok=True)