Apply the pre-commit hook whitespace fixes to all files in the repo.
(Line endings, blank lines at end of file, trailing whitespace)
* Original commit: espressif/esp-idf@66fb5a29bb
- Added a example test that connects to a local python websocket server.
- Added readme for websocket_client example.
Closes IDF-907
* Original commit: espressif/esp-idf@67c5225c14
