fix import errors

Change logic to use getvalue() to get the size in bytes.

removing redudant code

setup.py: add install_requires

pb: add 0x0 API compatibility

README: remove ptpb.pw

requirements.txt: update

remove unused manifest entries

setup.py: replace pbr with setuptool_scm

pastes: add support for header replay

README: add suggested versions

README: improve deployment explanation

README: better system python explanation

README: formatting

toml: lint