kristofer/JavaExercism: lots of exercises in java... from https://github.com/exercism/java

lots of exercises in java... from https://github.com/exercism/java

Morten Nygaard Åsnes 5263bcb032 Tournament (#890) * Added Tournament exercise * Added to config and refactored after review * Added topics and fixed indentation * Must be unlocked by a core exercise		9 lat temu
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main/java	Tournament (#890)	9 lat temu
test/java	Tournament (#890)	9 lat temu