[tevclient] Add tevclient port

[westlicht]

• 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.

[westlicht]

@microsoft-github-policy-service agree

[Cheney-W]

Regarding the CMakeLists.txt file of this library, I have a few questions:

1. add_library(tevclient STATIC)

   • Does this library not support dynamic builds? If it does not, please add "supports": "static" in vcpkg.json.

2. target_link_libraries(tevclient PRIVATE wsock32 ws2_32)

   • Does this library support UWP? If it does not, please add "supports": "!uwp" in vcpkg.json.

[dg0yt]

add_library(tevclient STATIC)

• Does this library not support dynamic builds? If it does not, please add "supports": "static" in vcpkg.json.

Even if it does not, DO NOT add "supports": "static" in vcpkg.json....
Use vcpkg_check_linkage(ONLY_STATIC_LIBRARY) at the top of the portfile.