[freetype][harfbuzz] Fix static freetype dependency.

ports/freetype/usage

@@ -1,5 +1,4 @@
 The package freetype is compatible with built-in CMake targets:
 
     find_package(Freetype REQUIRED)
-    target_link_libraries(main PRIVATE ${FREETYPE_LIBRARIES})
-    target_include_directories(main PRIVATE ${FREETYPE_INCLUDE_DIRS})
+    target_link_libraries(main PRIVATE Freetype::Freetype)

ports/harfbuzz/find-package-freetype.patch

@@ -0,0 +1,13 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 24ccb6f..21df836 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -201,7 +201,7 @@ set(project_headers
+ ## Find and include needed header folders and libraries
+ if (HB_HAVE_FREETYPE)
+ 
+-  include(FindFreetype)
++  find_package(Freetype REQUIRED)
+   if (NOT FREETYPE_FOUND)
+     message(FATAL_ERROR "HB_HAVE_FREETYPE was set, but we failed to find it. Maybe add a CMAKE_PREFIX_PATH= to your Freetype2 install prefix")
+   endif()

ports/harfbuzz/portfile.cmake

@@ -10,7 +10,9 @@ vcpkg_from_github(
 
 vcpkg_apply_patches(
     SOURCE_PATH ${SOURCE_PATH}
-    PATCHES "${CMAKE_CURRENT_LIST_DIR}/0001-fix-uwp-build.patch"
+    PATCHES
+        "${CMAKE_CURRENT_LIST_DIR}/0001-fix-uwp-build.patch"
+        "${CMAKE_CURRENT_LIST_DIR}/find-package-freetype.patch"
 )
 
 if(VCPKG_TARGET_ARCHITECTURE STREQUAL "arm" OR VCPKG_CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")

scripts/buildsystems/vcpkg.cmake

@@ -206,6 +206,17 @@ macro(find_package name)
         if(TIFF_LIBRARIES)
             list(APPEND TIFF_LIBRARIES ${LIBLZMA_LIBRARIES})
         endif()
+    elseif("${name}" STREQUAL "Freetype")
+        _find_package(${ARGV})
+        find_package(ZLIB)
+        find_package(PNG)
+        find_package(BZip2)
+        if(TARGET Freetype::Freetype)
+            set_property(TARGET Freetype::Freetype APPEND PROPERTY INTERFACE_LINK_LIBRARIES BZip2::BZip2 PNG::PNG ZLIB::ZLIB)
+        endif()
+        if(FREETYPE_LIBRARIES)
+            list(APPEND FREETYPE_LIBRARIES ${BZIP2_LIBRARIES} ${PNG_LIBRARIES} ${ZLIB_LIBRARIES})
+        endif()
     elseif("${name}" STREQUAL "tinyxml2")
         _find_package(${ARGV})
         if(TARGET tinyxml2_static AND NOT TARGET tinyxml2)