mjo/eja/TODO

   1 0. Add tests for orthogonality in the Peirce decomposition.
   2
   3 1. Add CartesianProductEJA.
   4
   5 2. Check the axioms in the constructor when check != False?
   6
   7 3. Add references and start citing them.
   8
   9 4. Implement the octonion simple EJA.
  10
  11 5. Factor out the unit-norm basis (and operator symmetry) tests once
  12    all of the algebras pass.