control namespaces for middlewares

[sittingbool]

Description

• fixes https://github.com/typestack/socket-controllers/issues/261
• solution: middlewares now have to e added per namespace, therefore I used the socket.io native .of() with a function filter
• added the possibility to limit usage of middleware by name or regular expression related to the namespace

Checklist

• [x] the pull request title describes what this PR does (not a vague title like Update index.md)
• [x] the pull request targets the default branch of the repository (develop)
• [x] the code follows the established code style of the repository
  • npm run prettier:check passes
  • npm run lint:check passes
• [x] tests are added for the changes I made (if any source code was modified)
• [x] documentation added or updated
• [x] I have run the project locally and verified that there are no errors

Fixes

fixes #261

[sittingbool]

This then has the issue, that on('connection') is no longer being called

See: https://github.com/socketio/socket.io/issues/3082

[attilaorosz]

Thank you for the PR! Could we use the default namespace if no namespace is explicity provided? https://socket.io/docs/v2/namespaces/#default-namespace

This seems to be compatible with the latest version as well.

[attilaorosz]

Closing as this has been resolved in #511

[github-actions[bot]]

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