Natively implement PALP Normal Form
Working on matrix permutations.
First sweep of matrix2.pyx and permgroup_element.pyx
First sweep of matrix0.pyx
First pass over lattice_polytope, still errors.
Cosmetic changes.
Working on permutation normal form.
Fixed errors in palp_*-methods.
Rearranging and regrouping palp_* methods.
Fixing doctests.
Removed auto- and isomorphism code for the time being.
Removed normal form for Laurent polynomials.
Added normal form permutation read out from PALP.
Added more doctests and longer descriptions.
implemented accepting_show_empty
doctest added for accepting_show_empty; EndOfWordLaTeX-symbol can now be changed by user
Merge branch 't/16229/fsm/latex-loop' into t/16266/fsm/accepting_show_empty_final_word_out_1

* t/16229/fsm/latex-loop:
  corrected one PEP8-spacing
  FiniteStateMachine._latex_ and latex_options: customize loop position
adapted one doctest after merge of #16229
trac #16237: Indexing in IncidenceStructureFromMatrix method fixed. minor clean-up of Hadamard matrices; they are now normalised.
trac #16211: Implement Hadamard Three Designs.