feat: implementedTaskDAO, fixed bugs for waiting for participants

...c/main/java/unipotsdam/gf/config/GFApplicationBinder.java

...f/modules/annotation/controller/AnnotationController.java

...am/gf/modules/assessment/controller/model/Assessment.java

...es/assessment/controller/model/GroupEvalDiagrammData.java

...m/gf/modules/assessment/controller/model/PACalculate.java

...essment/controller/service/AssessmentDBCommunication.java

...es/assessment/controller/service/QuizDBCommunication.java

...ipotsdam/gf/modules/journal/model/dao/JournalDAOImpl.java

.../unipotsdam/gf/modules/journal/model/dao/LinkDAOImpl.java

.../modules/journal/model/dao/ProjectDescriptionDAOImpl.java

...otsdam/gf/modules/journal/service/JournalServiceImpl.java

...java/unipotsdam/gf/modules/journal/util/JournalUtils.java

...dback/peerfeedback/Controller/PeerFeedbackController.java

...nipotsdam/gf/modules/project/ProjectConfigurationDAO.java

...c/main/java/unipotsdam/gf/modules/project/ProjectDAO.java

...rc/main/java/unipotsdam/gf/modules/states/PhasesImpl.java

...f/modules/submission/controller/SubmissionController.java

...en/src/main/java/unipotsdam/gf/modules/tasks/TaskDAO.java

...hen/src/main/java/unipotsdam/gf/modules/user/UserDAO.java

...schen/src/main/java/unipotsdam/gf/mysql/MysqlConnect.java