WIP: NXCALS-1255 Return proper error codes from security failures.

Wiktor Jan Juraszrequested to merge
feature-NXCALS-1255-return-proper-error-codes-from-security-failures into develop

#Merge request template @acc-logging-team - please have a look for approval.

Improved logging of security errors. Added AuthenticationFailureHandler. Changed inner joins to outer in UserRepository.

Edited by Wiktor Jan Jurasz

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