[zxing-cpp] Update zxing-cpp and fix iconv dependency (#14918)

* Update zxing-cpp and fix iconv dependency

* Convert PATCH file format

* update patch

* update version

* update patch

* update version

* revert the line end

* update version

* delete c++ 11

* update version

ports/zxing-cpp/0003-fix-dependency-bigint.patch

@@ -1,9 +1,13 @@
 diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 54071bd..0edd0e9 100644
+index 0f172d3..4999942 100644
 --- a/CMakeLists.txt
 +++ b/CMakeLists.txt
-@@ -44,6 +44,11 @@ if(WIN32)
+@@ -42,10 +42,13 @@ include(source_files.cmake)
+ if(WIN32)
+     include_directories(core/lib/win32)
      set(CMAKE_DEBUG_POSTFIX -debug)
+-else()
+-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
  endif()
  
 +# Bigint

ports/zxing-cpp/CONTROL

@@ -1,6 +1,5 @@
 Source: zxing-cpp
-Version: 3.3.3
-Port-Version: 8
+Version: 2020-12-2
 Homepage: https://github.com/glassechidna/zxing-cpp
 Description: Barcode detection and decoding library.
 Build-Depends: bigint

ports/zxing-cpp/portfile.cmake

@@ -3,8 +3,8 @@ vcpkg_check_linkage(ONLY_STATIC_LIBRARY)
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO glassechidna/zxing-cpp
-    REF 5aad4744a3763d814df98a18886979893e638274
-    SHA512 a079ad47171224de4469e76bf0779b6ebc9c6dfb3604bd5dbf5e6e5f321d9e6255f689daa749855f8400023602f1773214013c006442e9b32dd4b8146c888c02
+    REF e0e40ddec63f38405aca5c8c1ff60b85ec8b1f10
+    SHA512 222be56e3937136bd699a5d259a068b354ffcd34287bc8e0e8c33b924e9760501b81c56420d8062e0a924fefe95451778781b2aaa07207b0f18ce4ec33732581
     HEAD_REF master
     PATCHES
         0001-opencv4-compat.patch

versions/baseline.json

@@ -6597,8 +6597,8 @@
       "port-version": 0
     },
     "zxing-cpp": {
-      "baseline": "3.3.3",
-      "port-version": 8
+      "baseline": "2020-12-2",
+      "port-version": 0
     },
     "zydis": {
       "baseline": "3.1.0-1",

versions/z-/zxing-cpp.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "4891ff3ded94308cdc3f4c3b73956b80317a4767",
+      "version-string": "2020-12-2",
+      "port-version": 0
+    },
     {
       "git-tree": "d7761651d4c426d0322f52d5508b5beb66af6c9d",
       "version-string": "3.3.3",