aixlog port (microsoft#4660)

ports/aixlog/CONTROL

@@ -0,0 +1,3 @@
+Source: aixlog
+Version: 1.2.1
+Description: Header-only C++ logging library 

ports/aixlog/portfile.cmake

@@ -0,0 +1,32 @@
+# Common Ambient Variables:
+#   CURRENT_BUILDTREES_DIR    = ${VCPKG_ROOT_DIR}\buildtrees\${PORT}
+#   CURRENT_PACKAGES_DIR      = ${VCPKG_ROOT_DIR}\packages\${PORT}_${TARGET_TRIPLET}
+#   CURRENT_PORT_DIR          = ${VCPKG_ROOT_DIR}\ports\${PORT}
+#   PORT                      = current port name (zlib, etc)
+#   TARGET_TRIPLET            = current triplet (x86-windows, x64-windows-static, etc)
+#   VCPKG_CRT_LINKAGE         = C runtime linkage type (static, dynamic)
+#   VCPKG_LIBRARY_LINKAGE     = target library linkage type (static, dynamic)
+#   VCPKG_ROOT_DIR            = <C:\path\to\current\vcpkg>
+#   VCPKG_TARGET_ARCHITECTURE = target architecture (x64, x86, arm)
+#
+include(vcpkg_common_functions)
+
+vcpkg_from_github(
+	OUT_SOURCE_PATH SOURCE_PATH
+	REPO badaix/aixlog
+	REF  v1.2.1
+	SHA512 776558fdd911f0cc9e8d467bf8e00a1930d2e51bb8ccd5f36f95955fefecab65faf575a80fdaacfe83fd32808f8b9c2e0323b16823e0431300df7bc0c1dfde12
+    )
+
+
+
+file(MAKE_DIRECTORY ${CURRENT_PACKAGES_DIR}/include)	
+file(COPY ${SOURCE_PATH}/include/ DESTINATION ${CURRENT_PACKAGES_DIR}/include)
+
+
+# Handle copyright
+file(COPY ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/aixlog)
+file(RENAME ${CURRENT_PACKAGES_DIR}/share/aixlog/LICENSE ${CURRENT_PACKAGES_DIR}/share/aixlog/copyright)
+
+# Post-build test for cmake libraries
+# vcpkg_test_cmake(PACKAGE_NAME aixlog)