add dependency to assertj
BS-2611, unit tests for SimpleQueriableLoggerStrategy
BS-2611, add unit tests for SyncQueriableLoggerServiceImpl
BS-2611, add unit tests for QueriqbleLogSessionProviderImpl
remove depencency to fest-assert
BS-2611, remove useless code
merge bonita-log-model-impl-hibernate into bonita-log-model-impl
BS-2611, remove useless queries
Merge branch '6.2.x' into BS-2611_QueriableLogsTests