Change all $(SolutionDir) to $(ProjectDir)

Signed-off-by: Nathan Hjelm <hjelmn@me.com>
diff --git a/msvc/testlibusb_2017.vcxproj b/msvc/testlibusb_2017.vcxproj
index 01ef4de..87a7ca2 100644
--- a/msvc/testlibusb_2017.vcxproj
+++ b/msvc/testlibusb_2017.vcxproj
@@ -59,8 +59,8 @@
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup>
     <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
-    <IntDir>$(SolutionDir)..\$(Platform)\$(Configuration)\examples\$(ProjectName)\</IntDir>
-    <OutDir>$(SolutionDir)..\$(Platform)\$(Configuration)\examples\</OutDir>
+    <IntDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\$(ProjectName)\</IntDir>
+    <OutDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\</OutDir>
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>