[Feature] New MyList APIs

[CXwudi]

概要

I just want to let you aware that I found some APIs for modifying MyList

https://documenter.getpostman.com/view/23763145/2s9YsNdqLs

I have created a same issue at https://github.com/niconicolibs/api/issues/2

Pros 良くなる点

N/A

Cons 悪くなる点

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実現方法

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その他

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