Audio Path Tone Tester Third-Party Notices

Dear ImGui
- Vendored source: third_party/imgui
- License copied in this package as licenses/dear_imgui_LICENSE.txt
- Compiled into the executable for the diagnostic UI.

Steinberg ASIO SDK
Steinberg ASIO SDK integration is enabled in this build. The package must be distributed only with GPLv3-compatible source availability and preserved Steinberg SDK notices. Do not bundle vendor ASIO drivers or use the ASIO logo.

Windows SDK and system libraries
- The executable links to Windows system APIs for Win32, Direct3D 11, MME,
  DirectSound, WASAPI/Core Audio, and related system libraries.
- The package does not include Microsoft system DLLs or vendor audio drivers.
