EventLog + translator

[TatevikGr]

Summary

• EventLogManager
• Log failed logins
• Translator to translate log messages

Unit test

Are your changes covered with unit tests, and do they not break anything?

You can run the existing unit tests using this command:

vendor/bin/phpunit tests/

Code style

Have you checked that you code is well-documented and follows the PSR-2 coding
style?

You can check for this using this command:

vendor/bin/phpcs --standard=PSR2 src/ tests/

Other Information

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request, mention that information here. This could include benchmarks,
or other information.

If you are updating any of the CHANGELOG files or are asked to update the
CHANGELOG files by reviewers, please add the CHANGELOG entry at the top of the file.

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