[cpprestsdk] fix compilation of cpprestsdk on new MacOS

Cpprestsdk fails to compile on newer MacOS due to missing char_traits.

This provides the fix from microsoft/cpprestsdk#1820
Related to microsoft/cpprestsdk#1812

Author: aminya

ports/cpprestsdk/portfile.cmake

@@ -1,3 +1,9 @@
+vcpkg_download_distfile(PATCH_PR_1820
+    URLS https://github.com/microsoft/cpprestsdk/commit/396259a0f88e6f908c6d841f13c113d5f0d0ec26.patch
+    SHA512 2235feddc11633041eb27fadb154515c2270d2f187f3bab4cac3f0b73f7ff034a56d4540700ccae36be216f480915da5203b660f9401e371999dbce888a421bf
+    FILENAME char_traits.patch
+)
+
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO Microsoft/cpprestsdk
@@ -11,6 +17,7 @@ vcpkg_from_github(
         fix-clang-dllimport.patch # workaround for https://github.com/microsoft/cpprestsdk/issues/1710
         silence-stdext-checked-array-iterators-warning.patch
         fix-asio-error.patch
+        ${PATCH_PR_1820}
 )
 
 vcpkg_check_features(

ports/cpprestsdk/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "cpprestsdk",
   "version": "2.10.19",
-  "port-version": 3,
+  "port-version": 4,
   "description": [
     "C++11 JSON, REST, and OAuth library",
     "The C++ REST SDK is a Microsoft project for cloud-based client-server communication in native code using a modern asynchronous C++ API design. This project aims to help C++ developers connect to and interact with services."

versions/baseline.json

@@ -2054,7 +2054,7 @@
     },
     "cpprestsdk": {
       "baseline": "2.10.19",
-      "port-version": 3
+      "port-version": 4
     },
     "cppslippi": {
       "baseline": "1.4.3.16",

versions/c-/cpprestsdk.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "86500cf9f3b462296cd78a268eb4b643424b44e4",
+      "version": "2.10.19",
+      "port-version": 4
+    },
     {
       "git-tree": "9f5e160191038cbbd2470e534c43f051c80e7d44",
       "version": "2.10.19",