enhance(main...k1g4): added exception throwing

.gitignore

.gitlab-ci.yml

.gitlab/merge_request_templates/source-code-merge-request.md

LICENSE

pom.xml

src/main/java/edu/ntnu/idatt1002/k1g4/Match.java

src/main/java/edu/ntnu/idatt1002/k1g4/Team.java

src/main/java/edu/ntnu/idatt1002/k1g4/people/Admin.java

src/main/java/edu/ntnu/idatt1002/k1g4/people/Competitor.java

src/main/java/edu/ntnu/idatt1002/k1g4/people/Person.java

src/main/java/edu/ntnu/idatt1002/k1g4/people/Referee.java

src/test/java/edu/ntnu/idatt1002/k1g4/test/PersonTest.java