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

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

Jack Mustacato 7231746af9 complex-numbers: update tests (#1380) * Update tests to match canonical data version 1.3.0 * Update version file (1.0.0 -> 1.3.0)		vor 8 Jahren
..
main/java	complex-numbers: add to track	vor 9 Jahren
test/java	complex-numbers: update tests (#1380)	vor 8 Jahren