Add platform_utils and zeroize to visualc files
diff --git a/visualc/VS2010/mbedTLS.sln b/visualc/VS2010/mbedTLS.sln
index 686091c..66b96c3 100644
--- a/visualc/VS2010/mbedTLS.sln
+++ b/visualc/VS2010/mbedTLS.sln
@@ -203,6 +203,11 @@
 		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}

 	EndProjectSection

 EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zeroize", "zeroize.vcxproj", "{10C01E94-4926-063E-9F56-C84ED190D349}"

+	ProjectSection(ProjectDependencies) = postProject

+		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}

+	EndProjectSection

+EndProject

 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pem2der", "pem2der.vcxproj", "{D3C6FBD6-D78E-7180-8345-5E09B492DBEC}"

 	ProjectSection(ProjectDependencies) = postProject

 		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}

@@ -574,6 +579,14 @@
 		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Release|Win32.Build.0 = Release|Win32

 		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Release|x64.ActiveCfg = Release|x64

 		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Release|x64.Build.0 = Release|x64

+		{10C01E94-4926-063E-9F56-C84ED190D349}.Debug|Win32.ActiveCfg = Debug|Win32

+		{10C01E94-4926-063E-9F56-C84ED190D349}.Debug|Win32.Build.0 = Debug|Win32

+		{10C01E94-4926-063E-9F56-C84ED190D349}.Debug|x64.ActiveCfg = Debug|x64

+		{10C01E94-4926-063E-9F56-C84ED190D349}.Debug|x64.Build.0 = Debug|x64

+		{10C01E94-4926-063E-9F56-C84ED190D349}.Release|Win32.ActiveCfg = Release|Win32

+		{10C01E94-4926-063E-9F56-C84ED190D349}.Release|Win32.Build.0 = Release|Win32

+		{10C01E94-4926-063E-9F56-C84ED190D349}.Release|x64.ActiveCfg = Release|x64

+		{10C01E94-4926-063E-9F56-C84ED190D349}.Release|x64.Build.0 = Release|x64

 		{D3C6FBD6-D78E-7180-8345-5E09B492DBEC}.Debug|Win32.ActiveCfg = Debug|Win32

 		{D3C6FBD6-D78E-7180-8345-5E09B492DBEC}.Debug|Win32.Build.0 = Debug|Win32

 		{D3C6FBD6-D78E-7180-8345-5E09B492DBEC}.Debug|x64.ActiveCfg = Debug|x64