upgraded to java 17 and JUnit 5!

pom.xml

src/main/java/mi/hdm/recipes/IngredientManager.java

src/test/java/mi/hdm/AppTest.java

src/test/java/mi/hdm/recipes/CategoryTest.java

src/test/java/mi/hdm/recipes/IngredientTest.java

src/test/java/mi/hdm/recipes/NutritionCalculatorTest.java

src/test/java/mi/hdm/recipes/NutritionTableTest.java