(Follow-up of #911 / #1100)

The de-g1-bidi-specs.yaml and de-g0-bidi-specs.yaml have some duplication with the de-g1.yaml and de-g0.yaml tests. On the other hand, there are tests in the bidi versions that are not in the regular versions, and visa versa. Same is true for the dictionary tests. It would be better to group all tests that are the same for both table variants, and all tests that differ. This will make it more clear how the two table variants differ. We might have to remove some capitals from the tests.