Fix building the x64 Visual C++ configuration.

.gitignore

 
 *.exp
 *.idb
-*.pdb
 *.ilk
+*.iobj
+*.ipdb
 *.log
+*.pdb
 *.tlog/
 
 .vs/

src/windows/libespeak-ng.vcxproj

       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>LIBESPEAK_NG_EXPORT;INCLUDE_KLATT;INCLUDE_MBROLA;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ProgramDataBaseFileName>$(IntDir)libespeak-ng.pdb</ProgramDataBaseFileName>
+      <AdditionalIncludeDirectories>$(ProjectDir);$(ProjectDir)/../include;$(ProjectDir)/../include/compat</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>LIBESPEAK_NG_EXPORT;INCLUDE_KLATT;INCLUDE_MBROLA;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ProgramDataBaseFileName>$(IntDir)libespeak-ng.pdb</ProgramDataBaseFileName>
+      <AdditionalIncludeDirectories>$(ProjectDir);$(ProjectDir)/../include;$(ProjectDir)/../include/compat</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>