[libnice-gst] Added libnice-gst port at 0.1.18

[gerard-ryan-immersaview]

This port primarily works around the following dependency cycle where libnice enables the GStreamer plugin:

• libnice -> gstreamer
• gstreamer -> libnice

New port checklist:

• 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.

[gerard-ryan-immersaview]

@microsoft-github-policy-service agree company="ImmersaView Pty Ltd"

[MonicaLiu0311]

Thanks a lot for your contribution.

1. Please modify the deprecated options of libnice and libnice-gst:

CMake Warning at scripts/cmake/vcpkg_configure_meson.cmake:304 (message):
  Options ADDITIONAL_(NATIVE|CROSS)_BINARIES have been deprecated.  Only use
  ADDITIONAL_BINARIES!
Call Stack (most recent call first):
  ports/libnice-gst/portfile.cmake:14 (vcpkg_configure_meson)
  scripts/ports.cmake:147 (include)

2. Could you please provide the usage?

[MonicaLiu0311]

Please follow the prompts to place the .dll and .pdb files:

-- Performing post-build validation
warning: The following dlls were found in /lib or /debug/lib. Please move them to /bin or /debug/bin, respectively.

    E:\libnice-gst\packages\libnice-gst_x64-windows\lib\gstreamer-1.0\gstnice.dll

warning: The following dlls were found in /lib or /debug/lib. Please move them to /bin or /debug/bin, respectively.

    E:\libnice-gst\packages\libnice-gst_x64-windows\debug\lib\gstreamer-1.0\gstnice.dll

error: Found 2 post-build check problem(s). To submit these ports to curated catalogs, please first correct the portfile: E:\libnice-gst\ports\libnice-gst\portfile.cmake
Stored binary cache: "C:\Users\v-liumonica\AppData\Local\vcpkg\archives\05\05d905f560f1703323a0145c9fab51804868bdef9da5da673eef5abc98fda8d2.zip"
Elapsed time to handle libnice-gst:x64-windows: 44 s
Total install time: 48 s

[gerard-ryan-immersaview]

I believe I have addressed all your feedback