adding sync*.{c,h}

pEpEngine.vcxproj

@@ -99,6 +99,7 @@
     <ClCompile Include="src\sqlite3.c" />
     <ClCompile Include="src\stringlist.c" />
     <ClCompile Include="src\stringpair.c" />
+    <ClCompile Include="src\sync.c" />
     <ClCompile Include="src\timestamp.c" />
     <ClCompile Include="src\transport.c" />
     <ClCompile Include="src\trans_auto.c" />
@@ -125,6 +126,8 @@
     <ClInclude Include="src\sqlite3.h" />
     <ClInclude Include="src\stringlist.h" />
     <ClInclude Include="src\stringpair.h" />
+    <ClInclude Include="src\sync.h" />
+    <ClInclude Include="src\sync_internal.h" />
     <ClInclude Include="src\timestamp.h" />
     <ClInclude Include="src\transport.h" />
     <ClInclude Include="src\trans_auto.h" />

pEpEngine.vcxproj.filters

@@ -72,6 +72,9 @@
     <ClCompile Include="src\blacklist.c">
       <Filter>Quelldateien</Filter>
     </ClCompile>
+    <ClCompile Include="src\sync.c">
+      <Filter>Quelldateien</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="src\keymanagement.h">
@@ -149,6 +152,12 @@
     <ClInclude Include="src\blacklist.h">
       <Filter>Headerdateien</Filter>
     </ClInclude>
+    <ClInclude Include="src\sync.h">
+      <Filter>Headerdateien</Filter>
+    </ClInclude>
+    <ClInclude Include="src\sync_internal.h">
+      <Filter>Headerdateien</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Text Include="LICENSE.txt" />