add tftp server

docs/devnotes.md

@@ -242,6 +242,7 @@ python3 -m venv .venv
 pip install jinja2 strip_hints  # MANDATORY
 pip install mutagen  # audio metadata
 pip install pyftpdlib  # ftp server
+pip install partftpy  # tftp server
 pip install impacket  # smb server -- disable Windows Defender if you REALLY need this on windows
 pip install Pillow pyheif-pillow-opener pillow-avif-plugin  # thumbnails
 pip install pyvips  # faster thumbnails