[ao] Add new port libao

[xiaoyifang]

Describe the pull request
#21791

• What does your PR fix?

add libao port

• Which triplets are supported/not supported? Have you updated the CI baseline?

windows,

• Does your PR follow the maintainer guide?

Yes

• If you have added/updated a port: Have you run ./vcpkg x-add-version --all and committed the result?

Yes

If you are still working on the PR, open it as a Draft: https://github.blog/2019-02-14-introducing-draft-pull-requests/

[ghost]

All CLA requirements met.

[LilyWangLL]

Please run command vcpkg x-add-version --all then commit the changes.

[github-actions]

You have modified or added at least one vcpkg.json where a "license" field is missing.

If you feel able to do so, please consider adding a "license" field to the following files:

• ports/ao/vcpkg.json

Valid values for the license field can be found in the documentation

[LilyWangLL]

There are error on Linux:

Include files should not be duplicated into the /debug/include directory. If this cannot be disabled in the project cmake, use
    file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")

Could you please fix this error?

[xiaoyifang]

There are error on Linux:

Include files should not be duplicated into the /debug/include directory. If this cannot be disabled in the project cmake, use
    file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")

Could you please fix this error?

I do not intended it run in linux , can I just disabled the linux build

[LilyWangLL]

Ao build failed on UWP with the following error:

     4>D:\buildtrees\ao\src\1.2.2-ef2f813c3f.clean\src\audio_out.c(654,26): error C4996: 'strcat': This function or variable may be unsafe. Consider using strcat_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. [D:\buildtrees\ao\x64-uwp-dbg\ao.vcxproj]
     4>D:\buildtrees\ao\src\1.2.2-ef2f813c3f.clean\src\audio_out.c(655,17): error C4996: 'strcat': This function or variable may be unsafe. Consider using strcat_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. [D:\buildtrees\ao\x64-uwp-dbg\ao.vcxproj]

[xiaoyifang]

what about just disable it with supports field in vcpkg.json

[ras0219-msft]

Thanks for the PR!

Under normal circumstances we would not accept new libraries with such short names, however due to libao's maturity and renown I believe it is acceptable to use libao in this case.

[xiaoyifang]

normally ,when will this be merge?

[xiaoyifang]

can not be searched in the following website
https://vcpkg.io/en/packages.html