Arduino Core for CH32-1.0.4

fix some bugs;
add Linux and macOS.

Arduino Core for CH32-1.0.3

add CH32V10x and CH32V30x

Arduino Core for CH32-1.0.2

add spi and wire libraries

Arduino Core for CH32-1.0.1

1. Add support for CH32X035
2. Fix the issue of port name is incorrect.

Arduino Core for CH32-1.0.0

first relase