AudioPluginHost: Make the .exe relocatable when using the Projucer build

extras/AudioPluginHost/AudioPluginHost.jucer

@@ -55,7 +55,7 @@
       </MODULEPATHS>
     </LINUX_MAKE>
     <VS2015 targetFolder="Builds/VisualStudio2015" smallIcon="c97aUr" bigIcon="c97aUr"
-            extraCompilerFlags="/w44265 /w44062 /bigobj">
+            extraCompilerFlags="/w44265 /w44062 /bigobj" extraDefs="PIP_JUCE_EXAMPLES_DIRECTORY_STRING=R&quot;?($(SolutionDir)..\..\..\..\examples)?&quot;">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" isDebug="1" targetName="AudioPluginHost"/>
         <CONFIGURATION name="Release" isDebug="0" targetName="AudioPluginHost" debugInformationFormat="ProgramDatabase"/>
@@ -78,7 +78,7 @@
       </MODULEPATHS>
     </VS2015>
     <VS2017 targetFolder="Builds/VisualStudio2017" smallIcon="c97aUr" bigIcon="c97aUr"
-            extraCompilerFlags="/w44265 /w45038 /w44062">
+            extraCompilerFlags="/w44265 /w45038 /w44062" extraDefs="PIP_JUCE_EXAMPLES_DIRECTORY_STRING=R&quot;?($(SolutionDir)..\..\..\..\examples)?&quot;">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" isDebug="1" targetName="AudioPluginHost"/>
         <CONFIGURATION name="Release" isDebug="0" targetName="AudioPluginHost" debugInformationFormat="ProgramDatabase"/>
@@ -101,7 +101,7 @@
       </MODULEPATHS>
     </VS2017>
     <VS2019 targetFolder="Builds/VisualStudio2019" smallIcon="c97aUr" bigIcon="c97aUr"
-            extraCompilerFlags="/w44265 /w45038 /w44062">
+            extraCompilerFlags="/w44265 /w45038 /w44062" extraDefs="PIP_JUCE_EXAMPLES_DIRECTORY_STRING=R&quot;?($(SolutionDir)..\..\..\..\examples)?&quot;">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" isDebug="1" targetName="AudioPluginHost"/>
         <CONFIGURATION name="Release" isDebug="0" targetName="AudioPluginHost" debugInformationFormat="ProgramDatabase"/>