[fixed-containers] add new port

[jiayuehua]

• Changes comply with the maintainer guide.
• The name of the port matches an existing name for this component on https://repology.org/ if possible, and/or is strongly associated with that component on search engines.
• Optional dependencies are resolved in exactly one way. For example, if the component is built with CMake, all find_package calls are REQUIRED, are satisfied by vcpkg.json's declared dependencies, or disabled with CMAKE_DISABLE_FIND_PACKAGE_Xxx.
• The versioning scheme in vcpkg.json matches what upstream says.
• The license declaration in vcpkg.json matches what upstream says.
• The installed as the "copyright" file matches what upstream says.
• The source code of the component installed comes from an authoritative source.
• The generated "usage text" is accurate. See adding-usage for context.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is in the new port's versions file.
• Only one version is added to each modified port's versions file.

[MonicaLiu0311]

The usage test passed on x64-windows (header files found):

fixed-containers provides CMake targets:

  # this is heuristically generated, and may not be correct
  find_package(fixed_containers CONFIG REQUIRED)
  target_link_libraries(main PRIVATE fixed_containers::fixed_containers)

[jiayuehua]

done.

[data-queue]

Can you explain why we need this patch?

[jiayuehua]

need to add magic_enum dependedency, so add it to Fixed-containersConfig.cmake.in file. After cmake build complete, need to install config file, so that user can use through find_package .