Ignore codecvt deprecation warning until there is an official replacement.

Author: KN4CK3R

NativeCore/Windows/NativeCore.vcxproj

@@ -103,7 +103,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;NATIVECORE_EXPORTS;_CRT_SECURE_NO_WARNINGS;NOMINMAX;RECLASSNET32;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;NATIVECORE_EXPORTS;_CRT_SECURE_NO_WARNINGS;NOMINMAX;RECLASSNET32;_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
     <Link>
@@ -119,7 +119,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_DEBUG;_WINDOWS;_USRDLL;NATIVECORE_EXPORTS;_CRT_SECURE_NO_WARNINGS;NOMINMAX;RECLASSNET64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_WINDOWS;_USRDLL;NATIVECORE_EXPORTS;_CRT_SECURE_NO_WARNINGS;NOMINMAX;RECLASSNET64;_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
     <Link>
@@ -137,7 +137,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;NATIVECORE_EXPORTS;_CRT_SECURE_NO_WARNINGS;NOMINMAX;RECLASSNET32;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;NATIVECORE_EXPORTS;_CRT_SECURE_NO_WARNINGS;NOMINMAX;RECLASSNET32;_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
     <Link>
@@ -157,7 +157,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;NATIVECORE_EXPORTS;_CRT_SECURE_NO_WARNINGS;NOMINMAX;RECLASSNET64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;NATIVECORE_EXPORTS;_CRT_SECURE_NO_WARNINGS;NOMINMAX;RECLASSNET64;_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
     <Link>