Release v1.0.5, add CH32V203C8T6 support

Release v1.0.4, add missing ch55xtool/*.wcfg in sdist

Release 1.0.3, ch55xtool would work as well as python3 -m ch55xtool

Release 1.0.2, fix packaging bug

Release 1.0.1, add long_description

Release 1.0.0, with configurable ch55x settings