Add py-cython

ports/py-cython/portfile.cmake

@@ -0,0 +1,18 @@
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO  cython/cython
+    REF ${VERSION}
+    SHA512 585d3fe810ace55278fcc6ea4508b3b5259320f92998cd688da787cd5f88ac5fc2467025f20da6d968969eb3296ae9c517136d24a4dbb475441271227968f6be
+    HEAD_REF main
+)
+
+vcpkg_python_build_and_install_wheel(SOURCE_PATH "${SOURCE_PATH}")
+
+vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/LICENSE.txt")
+
+if(NOT VCPKG_TARGET_IS_WINDOWS)
+  vcpkg_copy_tools(TOOL_NAMES cygdb cython cythonize DESTINATION "${CURRENT_PACKAGES_DIR}/${VCPKG_PYTHON3_SCRIPTS}" AUTO_CLEAN)
+endif()
+
+set(VCPKG_POLICY_EMPTY_INCLUDE_FOLDER enabled)
+set(VCPKG_POLICY_MISMATCHED_NUMBER_OF_BINARIES enabled)

ports/py-cython/vcpkg.json

@@ -0,0 +1,15 @@
+{
+  "name": "py-cython",
+  "version": "3.0.5",
+  "description": "Cython is a Python compiler that makes writing C extensions for Python as easy as Python itself. Cython is based on Pyrex, but supports more cutting edge functionality and optimizations.",
+  "homepage": "https://cython.org/",
+  "license": "Apache-2.0",
+  "dependencies": [
+    "py-setuptools",
+    "python3",
+    {
+      "name": "vcpkg-python-scripts",
+      "host": true
+    }
+  ]
+}