…se, Fix parser issues related to GetTrustedInput, reworked sendApdus() method, Update txparser, Helpers reworked to make segwit tests pass, More fixes in helpers for segwit inputs, Deactivate expected_signature as a test data (still WIP), Fix issue with input script not sent in some cases, Rework hash computation to fix wrong segwit tx hash + stuff, Adaptations for test data move to conftest.py + initial mods for test automation (unfinished)

…offsets, Removed some more indexes + fixed issues in segwit inputs script handling, Fixed Zcash Overwinter tests + adapted other tests to TxHashMode being instanciable, Finish Segwit / Zcash tests adaptations to new tx parser, Moved test data from test scripts to new conftest.py & use fixtures to access them

…sted next steps