Add tests for VelopackApp verifier

test/TestApp/Program.cs

@@ -7,6 +7,7 @@ try {
     bool shouldExit = false;
     bool shouldAutoUpdate = args.Any(a => a.Equals("--autoupdate", StringComparison.OrdinalIgnoreCase));
 
+#if !NO_VELO_BUILDER
     VelopackApp.Build()
         .SetAutoApplyOnStartup(shouldAutoUpdate)
         .WithFirstRun((v) => {
@@ -33,6 +34,7 @@ try {
     if (shouldExit) {
         return 0;
     }
+#endif
 
     if (args.Length == 1 && args[0] == "version") {
         var locator = VelopackLocator.GetDefault(new ConsoleLogger());

test/TestApp/TestApp.csproj

@@ -6,6 +6,10 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <PropertyGroup Condition=" $(NoVelopackApp) != '' ">
+    <DefineConstants>NO_VELO_BUILDER</DefineConstants>
+  </PropertyGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\..\src\Velopack\Velopack.csproj" />
   </ItemGroup>