* feat:line adapter and config
* fix:After receiving the message, decode it and handle it as "message_chain"
* feat:add line-bot-sdk
* del print
* feat: add image to base64
* fix: download image to base64
* del Convert binary data to a base64 string
* del print
* perf: i18n specs for zh_Hant and ja_JP
* fix:line adapter Plugin system
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Co-authored-by: Junyan Qin <rockchinq@gmail.com>
