Update build script for even alignment, and -x c option

Update generic selection in Readme

update pack tool

Update package_ch55xduino_mcs51_index.json

Update package_ch55xduino_mcs51_index.json

Update package_ch55xduino_mcs51_index.json

Update package_ch55xduino_mcs51_index.json

Update package_ch55xduino_mcs51_index.json

Update package_ch55xduino_mcs51_index.json

update to 0.0.3