Add Microsoft Documentation

检查 issue 中列出的 MicrosoftDocs 仓库，从 windows-driver-docs 及其 LICENSE 和 LICENSE-CODE 文件开始，然后比较 issues #158 和 #2102 中现有的 DevDocs 上下文。完成的要求是确定一个范围明确的源集合，并确认支持导入文档、搜索和索引行为以及再分发许可。

Feature request

Summary

Please add the documentation from the following Microsoft sources listed below (more or less in order of importance), or as much as possible from it.

The existing search for these docs is lacking and an index doesn't exist. The offline version of the docs is huge, broken, unmaintained, and the search and index don't work either.
Furthermore, it would be convenient to have a single source for this documentation and other documentation DevDocs currently hosts (e.g. cppreference for which DevDocs also gives a superior search and index to what cppreference provides).

• https://github.com/MicrosoftDocs/windows-driver-docs
• https://github.com/MicrosoftDocs/windows-driver-docs-ddi
• https://github.com/MicrosoftDocs/sdk-api/
• https://github.com/MicrosoftDocs/win32
• https://github.com/MicrosoftDocs/cpp-docs
• https://github.com/MicrosoftDocs/windows-dev-docs
• https://github.com/MicrosoftDocs/winrt-api
• https://github.com/MicrosoftDocs/winrt-related
• https://github.com/MicrosoftDocs/Console-Docs
• https://github.com/MicrosoftDocs/windowsserverdocs
• https://github.com/MicrosoftDocs/PowerShell-Docs
• https://github.com/MicrosoftDocs/windows-powershell-docs
• https://github.com/MicrosoftDocs/Virtualization-Documentation
• https://github.com/MicrosoftDocs/windows-itpro-docs/
• https://github.com/MicrosoftDocs/visualstudio-docs

You could also add documentation from other repositories under https://github.com/MicrosoftDocs, such as:

• https://github.com/MicrosoftDocs/WSL/
• https://github.com/MicrosoftDocs/msix-docs/

The license for the documentation in all of those sources is CC-BY-4.0 which allows modification and distribution according to my understanding. The license for the code samples in the documentation is MIT.

References

• https://github.com/freeCodeCamp/devdocs/issues/158
  Says the license is incompatible, but old - from 2015. The license now allows modification and distribution.
• https://github.com/freeCodeCamp/devdocs/issues/2102
  New but unclear. Says the the "docs need to be available under a free license". I don't know what you consider free, but CC-BY-4.0 looks "free enough" to me. The cppreference docs you provide are licenses under CC-BY-SA-3.0 which is more restrictive, so I gather CC-BY-4.0 is good enough.
• https://trello.com/c/PVnfdeaN
  Says that "most docs by Apple / Microsoft / Adobe, are released under restrictive licenses (no redistribution) incompatible with DevDocs", but again this is not the case with regard to the Microsoft documentation listed above.