Renaming to snake case for consistency

crc/api/file.py

@@ -8,7 +8,7 @@ from flask import send_file
 from crc import session
 from crc.api.common import ApiErrorSchema, ApiError
 from crc.models.file import FileModelSchema, FileModel, FileDataModel, FileType
-from crc.services.FileService import FileService
+from crc.services.file_service import FileService
 
 
 def get_files(workflow_spec_id=None, study_id=None, workflow_id=None, task_id=None, form_field_key=None):

crc/scripts/CompleteTemplate.py

@@ -9,7 +9,7 @@ from crc.models.workflow import WorkflowSpecModel
 from docxtpl import DocxTemplate
 import jinja2
 
-from crc.services.FileService import FileService
+from crc.services.file_service import FileService
 from crc.services.workflow_processor import WorkflowProcessor