minor #641 Add event annotations (RikudouSage)
minor #641 Add event annotations (RikudouSage)

This PR was merged into the 2.x-dev branch.

Discussion
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Add event annotations

This annotation is used for external tools to read information about event class, it's useful for example in PhpStorm with Symfony plugin where it can automatically create the method with correct parameters, it helps speed up development a lot.

Commits
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a9d4197 add event annotations

lexik/LexikJWTAuthenticationBundle,chalasr/LexikJWTAuthenticationBundle