Merged pipeline into toolbox

.github/workflows/proof_tools.yml

proofs/pipeline/.gitignore

proofs/pipeline/.ocamlformat

proofs/pipeline/Makefile

proofs/pipeline/dune

proofs/pipeline/dune-project

proofs/pipeline/examples/.gitignore

proofs/pipeline/psnj_pipe.opam

proofs/psnj_toolbox/bin/dune

proofs/psnj_toolbox/bin/main.ml

proofs/psnj_toolbox/bin/pipe.ml

proofs/psnj_toolbox/dkproof.mk

proofs/psnj_toolbox/dune-project

proofs/psnj_toolbox/personoj.opam

proofs/psnj_toolbox/pipe_tests/encoding/cpl.lp

proofs/psnj_toolbox/pipe_tests/encoding/lhol.lp

..._toolbox/pipe_tests/encoding/propositional_connectives.lp

proofs/psnj_toolbox/pipe_tests/encoding/pvs_cert.lp

proofs/psnj_toolbox/pipe_tests/encoding/pvs_connectives.lp

proofs/psnj_toolbox/pipe_tests/encoding/qfo.json