Update solution dependencies.

Make sure Direct2D, Win32, Cairo and Gtk are build before the test apps.

Perspex.sln

@@ -6,6 +6,12 @@ MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Perspex.Win32", "src\Windows\Perspex.Win32\Perspex.Win32.csproj", "{811A76CF-1CF6-440F-963B-BBE31BD72A82}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestApplication", "samples\TestApplication\TestApplication.csproj", "{E3A1060B-50D0-44E8-88B6-F44EF2E5BD72}"
+	ProjectSection(ProjectDependencies) = postProject
+		{3E908F67-5543-4879-A1DC-08EACE79B3CD} = {3E908F67-5543-4879-A1DC-08EACE79B3CD}
+		{FB05AC90-89BA-4F2F-A924-F37875FB547C} = {FB05AC90-89BA-4F2F-A924-F37875FB547C}
+		{811A76CF-1CF6-440F-963B-BBE31BD72A82} = {811A76CF-1CF6-440F-963B-BBE31BD72A82}
+		{54F237D5-A70A-4752-9656-0C70B1A7B047} = {54F237D5-A70A-4752-9656-0C70B1A7B047}
+	EndProjectSection
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Perspex.Direct2D1", "src\Windows\Perspex.Direct2D1\Perspex.Direct2D1.csproj", "{3E908F67-5543-4879-A1DC-08EACE79B3CD}"
 EndProject
@@ -60,6 +66,12 @@ EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Perspex.Markup.Xaml", "src\Markup\Perspex.Markup.Xaml\Perspex.Markup.Xaml.csproj", "{3E53A01A-B331-47F3-B828-4A5717E77A24}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "XamlTestApplication", "samples\XamlTestApplication\XamlTestApplication.csproj", "{78CAFE33-DBEB-4132-8A28-81CFE8A4933C}"
+	ProjectSection(ProjectDependencies) = postProject
+		{3E908F67-5543-4879-A1DC-08EACE79B3CD} = {3E908F67-5543-4879-A1DC-08EACE79B3CD}
+		{FB05AC90-89BA-4F2F-A924-F37875FB547C} = {FB05AC90-89BA-4F2F-A924-F37875FB547C}
+		{811A76CF-1CF6-440F-963B-BBE31BD72A82} = {811A76CF-1CF6-440F-963B-BBE31BD72A82}
+		{54F237D5-A70A-4752-9656-0C70B1A7B047} = {54F237D5-A70A-4752-9656-0C70B1A7B047}
+	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Markup", "Markup", "{8B6A8209-894F-4BA1-B880-965FD453982C}"
 EndProject