feat: add get and delete files

itd/routes/files.py

@@ -1,7 +1,14 @@
 from _io import BufferedReader
+from uuid import UUID
 
 from itd.request import fetch
 
 
 def upload_file(token: str, name: str, data: BufferedReader):
     return fetch(token, 'post', 'files/upload', files={'file': (name, data)})
+
+def get_file(token: str, id: UUID):
+    return fetch(token, 'get', f'files/{id}')
+
+def delete_file(token: str, id: UUID):
+    return fetch(token, 'delete', f'files/{id}')