Added port libqrencode - a fast and compact QR Code encoding library (#2372)

* https://github.com/Microsoft/vcpkg/issues/2363

* libqrencode: Added necessary new line at end of CONTROL, portfile.cmake, usage files. Added copying the usage file in portfile.cmake, and removed unnecessary DBUILD_SHARED_LIBS as remarked @ras0219-msft

* [libqrencode] Adjust usage to match other packages

ports/libqrencode/CONTROL

@@ -0,0 +1,4 @@
+Source: libqrencode
+Version: 4.0.0-1
+Build-Depends: libpng, libiconv
+Description: libqrencode - a fast and compact QR Code encoding library

ports/libqrencode/portfile.cmake

@@ -0,0 +1,47 @@
+include(vcpkg_common_functions)
+
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO fukuchi/libqrencode
+    REF v4.0.0
+    SHA512 0e4855c7983d4c73eb4a7f9cb081679547957c9f4a30cb943f2ae25e3a6496a202d3489f46e248386499d05a68c6a36e24f64af57ef4d6f447ef3a39e08374ee
+    HEAD_REF master
+)
+
+vcpkg_apply_patches(
+    SOURCE_PATH ${SOURCE_PATH}
+    PATCHES
+        ${CMAKE_CURRENT_LIST_DIR}/remove-deprecated-attribute.patch
+)
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    PREFER_NINJA
+    OPTIONS
+        -DWITH_TOOLS=NO
+        -DWITH_TEST=NO
+        -DSKIP_INSTALL_PROGRAMS=ON
+        -DSKIP_INSTALL_EXECUTABLES=ON
+        -DSKIP_INSTALL_FILES=ON
+    OPTIONS_DEBUG
+        -DSKIP_INSTALL_HEADERS=ON
+)
+
+vcpkg_install_cmake()
+
+if(EXISTS ${CURRENT_PACKAGES_DIR}/lib/qrencode.dll)
+    file(MAKE_DIRECTORY ${CURRENT_PACKAGES_DIR}/bin)
+    file(RENAME ${CURRENT_PACKAGES_DIR}/lib/qrencode.dll ${CURRENT_PACKAGES_DIR}/bin/qrencode.dll)
+endif()
+if(EXISTS ${CURRENT_PACKAGES_DIR}/debug/lib/qrencoded.dll)
+    file(MAKE_DIRECTORY ${CURRENT_PACKAGES_DIR}/debug/bin)
+    file(RENAME ${CURRENT_PACKAGES_DIR}/debug/lib/qrencoded.dll ${CURRENT_PACKAGES_DIR}/debug/bin/qrencoded.dll)
+endif()
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/share)
+file(COPY ${CURRENT_BUILDTREES_DIR}/src/libqrencode-4.0.0/COPYING DESTINATION ${CURRENT_PACKAGES_DIR}/share/libqrencode)
+file(RENAME ${CURRENT_PACKAGES_DIR}/share/libqrencode/COPYING ${CURRENT_PACKAGES_DIR}/share/libqrencode/copyright)
+
+vcpkg_copy_pdbs()
+
+file(COPY ${CMAKE_CURRENT_LIST_DIR}/usage DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})

ports/libqrencode/remove-deprecated-attribute.patch

@@ -0,0 +1,16 @@
+ qrencode.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/qrencode.h b/qrencode.h
+index b855f0a..a6d4a29 100644
+--- a/qrencode.h
++++ b/qrencode.h
+@@ -555,7 +555,7 @@ extern char *QRcode_APIVersionString(void);
+ /**
+  * @deprecated
+  */
+-extern void QRcode_clearCache(void) __attribute__ ((deprecated));
++extern void QRcode_clearCache(void);
+ 
+ #if defined(__cplusplus)
+ }

ports/libqrencode/usage

@@ -0,0 +1,10 @@
+To use libqrencode library in CMakeLists.txt:
+
+    find_path(QRENCODE_INCLUDE_DIR NAMES qrencode.h)
+    find_library(QRENCODE_LIBRARY_RELEASE qrencode)
+    find_library(QRENCODE_LIBRARY_DEBUG qrencoded)
+    set(QRENCODE_LIBRARIES optimized ${QRENCODE_LIBRARY_RELEASE} debug ${QRENCODE_LIBRARY_DEBUG})
+
+    add_executable(main main.cpp)
+    target_include_directories(main PRIVATE ${QRENCODE_INCLUDE_DIR})
+    target_link_libraries(main PRIVATE ${QRENCODE_LIBRARIES})