[socket-io-client] new port (microsoft#4557)

ports/socket-io-client/CONTROL

@@ -0,0 +1,4 @@
+Source: socket-io-client
+Version: 1.6.1
+Description: C++11 implementation of Socket.IO client
+Build-Depends: boost, rapidjson, websocketpp

ports/socket-io-client/portfile.cmake

@@ -0,0 +1,27 @@
+include(vcpkg_common_functions)
+
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO socketio/socket.io-client-cpp
+    REF 1.6.1
+    SHA512 01c9c172e58a16b25af07c6bde593507792726aca28a9b202ed9531d51cd7e77c7e7d536102e50265d66de96e9708616075902dfdcfc72983758755381bad707
+    HEAD_REF master
+)
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    PREFER_NINJA # Disable this option if project cannot be built with Ninja
+    # OPTIONS -DUSE_THIS_IN_ALL_BUILDS=1 -DUSE_THIS_TOO=2
+    # OPTIONS_RELEASE -DOPTIMIZE=1
+    # OPTIONS_DEBUG -DDEBUGGABLE=1
+)
+
+vcpkg_install_cmake()
+
+file(MAKE_DIRECTORY ${CURRENT_PACKAGES_DIR}/include)
+file(COPY           ${SOURCE_PATH}/build/include
+     DESTINATION    ${CURRENT_PACKAGES_DIR}/include
+     FILES_MATCHING PATTERN "*.h")
+
+# Handle copyright
+configure_file(${SOURCE_PATH}/LICENSE ${CURRENT_PACKAGES_DIR}/share/socket-io-client/copyright COPYONLY)