Merge branch 'microservice3' into 'milestone-1'

emailmicroservice/emailmicroserviceopenapi.yaml

emailmicroservice/mvnw

emailmicroservice/mvnw.cmd

emailmicroservice/pom.xml

...ice/src/main/java/cz/muni/fi/pa165/microservice3/App.java

...cz/muni/fi/pa165/microservice3/email/EmailController.java

...va/cz/muni/fi/pa165/microservice3/email/EmailService.java

...a/cz/muni/fi/pa165/microservice3/email/EmailTemplate.java

...java/cz/muni/fi/pa165/microservice3/email/EmailUtils.java

emailmicroservice/src/main/resources/application.yaml

...src/test/java/cz/muni/fi/pa165/microservice3/AppTest.java

...uni/fi/pa165/microservice3/email/EmailControllerTest.java

pom.xml