Merge branch 'master' into 'main'

.gitpod.Dockerfile

.gitpod.yml

.vscode/settings.json

README.md

emilehu-calc/.gitignore

emilehu-calc/pom.xml

emilehu-calc/src/main/java/emilehu/calc/Calc.java

emilehu-calc/src/main/java/emilehu/calc/CalcApp.java

emilehu-calc/src/main/java/emilehu/calc/CalcController.java

emilehu-calc/src/main/resources/emilehu/calc/Calc.fxml

emilehu-calc/src/test/java/emilehu/calc/AppTest.java

emilehu-calc/src/test/java/emilehu/calc/CalcTest.java

emilehu-calc/src/test/java/emilehu/calc/README.md