Added disconnect client to the Websocket server

[CallMeVerity]

Added the ability to disconnect clients who are connected to your websocket server and implemented the GetClients function.

[ProjectSky]

Thank you for your contribution. Before we proceed, could you please:

1. Consolidate your commits - Currently there are 37 commits implementing just the DisconnectClient and GetClients features. Please rebase/squash them into meaningful atomic commits.
2. Fix code indentation issues - Some files have inconsistent formatting.
3. Update version definition - After these changes, please modify SMEXT_CONF_VERSION in smsdk_config.h as this defines release version.

Please resubmit after completing these adjustments. Appreciate your work!

[CallMeVerity]

I've made the requested changes, including consolidating commits, fixing formatting, and updating the version. Let me know if anything else is needed.