Syntax Highlighting: add support for Shiki

[noraj]

Check List

• [X] I have already read Docs page.
• [X] I have already searched existing issues.

Feature Request

In addition to highlight.js and pism.js, it would be nice to have support for Shiki for syntax highlighting.

highlight.js and pism.js are lightweight, but have very basic syntax parsing while Shiki has a power powerful and complete lexer / tokenizer.

Others

References:

• https://shiki.matsu.io/
• https://github.com/shikijs/shiki

Plugins:

• hexo-shiki-plugin
• hexo-highlight-shiki
• hexo-shiki-twoslash