v.1.0.4

What's Changed

• Convert to CMake based project by @knro in #33
• bug fix
  • delete the unimplemented pin for TX2 (fix for #36) by @pjueon in #37
• add support for upstream GPIO num/name scheme
• add test codes
• should be equivalent to v2.0.12 of the official python library.

New Contributors

• @knro made their first contribution in #33