Added
* Fourth version of this Python project, containing (added to this version):
- Gating function for ECG removal,
- Improve ICA for heart lead detection,
- Power spectrum function in helper_functions,
- Converter function for Biopac acquired data in converter_functions,
- High envelope function hi_envelope in helper_functions,
- Working pipeline improved (working_pipeline_pre_ml) in helper_functions,
- Slices_jump_slider function produces continous sequential slices over an
array of a certain legnth spaced out by a 'jump' in helper_functions.