[Feat](Exports) Add a copy_folder function and allow the copies to be done through simlinks

aidge_core/export_utils/__init__.py

 from .node_export import ExportNode, ExportNodeCpp
-from .code_generation import generate_file, generate_str, copy_file
+from .code_generation import generate_file, generate_str, copy_file, copy_folder
 from .export_registry import ExportLib
 from .scheduler_export import scheduler_export
 from .tensor_export import tensor_to_c, generate_input_file

aidge_core/export_utils/code_generation.py

@@ -44,10 +44,29 @@ def generate_str(template_path: Union[Path, str], **kwargs) -> str:
     return Environment(loader=FileSystemLoader(
         template_path.parent), undefined=StrictUndefined, keep_trailing_newline=True).get_template(template_path.name).render(kwargs)
 
-def copy_file(filename, dst_folder):
+def copy_file(filename, dst_folder, symlink=False):
+    """Copy the given file into the given dst path
+    The symlink arg allows to make a symbolic link instead of copying the file.
+    """
 
     # If directory doesn't exist, create it
     if not os.path.exists(dst_folder):
         os.makedirs(dst_folder)
 
-    shutil.copy(filename, dst_folder)
+    if symlink:
+        dst_folder += "/" + os.path.basename(filename)
+        if not os.path.exists(dst_folder):
+            os.symlink(filename, dst_folder)
+    else:
+        shutil.copy(filename, dst_folder)
+
+def copy_folder(foldername, dst_folder, symlink=False):
+    """Copy the given folder into the given dst path
+    The symlink arg allows to make a symbolic link instead of copying the file.
+    """
+
+    if symlink:
+        os.symlink(foldername, dst_folder)
+    else:
+        shutil.copytree(foldername, dst_folder, dirs_exist_ok=True)
+    
\ No newline at end of file

aidge_core/export_utils/export_registry.py

@@ -40,6 +40,9 @@ class ExportLib(aidge_core.OperatorImpl):
     # key: Path where static file is
     # Value: Path where to copy the file relative to the export root
     static_files: Dict[str, str] = {}
+    # key: Path where static folder is
+    # Value: Path where to copy the folder relative to the export root
+    static_folders: Dict[str, str] = {}
     # Main memory section
     mem_section = None
     # Custom forward generation jinja file

aidge_core/export_utils/scheduler_export.py

@@ -2,7 +2,7 @@ import aidge_core
 import os
 import shutil
 from pathlib import Path
-from aidge_core.export_utils import ExportLib, generate_file, copy_file
+from aidge_core.export_utils import ExportLib, generate_file, copy_file, copy_folder
 from typing import List, Tuple
 
 
@@ -208,4 +208,8 @@ def scheduler_export(scheduler, export_folder_path: str, export_lib: ExportLib =
     if export_lib is not None:
         # Copy all static files in the export
         for source, destination in export_lib.static_files.items():
-            copy_file(source, str(export_folder / destination))
+            copy_file(source, str(export_folder / destination), test_mode)
+            
+        # Copy all static folders in the export
+        for source, destination in export_lib.static_folders.items():
+            copy_folder(source, str(export_folder / destination), test_mode)