5. Factor out the unit-norm basis (and operator symmetry) tests once
all of the algebras pass.
-6. Add a TrivialEJA class and use it in the tests for is_trivial().
- The random_eja() function should also be able to return these.
+6. Override inner_product(), _max_test_case_size(), et cetera in
+ DirectSumEJA.
+
+7. Switch to QQ in *all* algebras for _charpoly_coefficients().