Fix to avoid building wabt every time

wabt was building everytime because the project file had an incorrect header name

Author: Meghana Gupta

lib/wabt/wabt.vcxproj

@@ -102,7 +102,7 @@
     <ClInclude Include="src\circular-array.h" />
     <ClInclude Include="src\color.h" />
     <ClInclude Include="src\common.h" />
-    <ClInclude Include="src\error-formater.h" />
+    <ClInclude Include="src\error-formatter.h" />
     <ClInclude Include="src\error.h" />
     <ClInclude Include="src\expr-visitor.h" />
     <ClInclude Include="src\feature.def" />
@@ -140,4 +140,4 @@
   </ItemGroup>
   <Import Project="$(BuildConfigPropsPath)Chakra.Build.targets" Condition="exists('$(BuildConfigPropsPath)Chakra.Build.targets')" />
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-</Project>
+</Project>