fix(ci): Invoke-MSBuild fails since there is not project.json

Author: jaredcnance

Build.ps1

@@ -54,11 +54,14 @@ EnsurePsbuildInstalled
 
 exec { & dotnet restore }
 
-Invoke-MSBuild
+#Invoke-MSBuild
 
 $revision = @{ $true = $env:APPVEYOR_BUILD_NUMBER; $false = 1 }[$env:APPVEYOR_BUILD_NUMBER -ne $NULL];
 $revision = "{0:D4}" -f [convert]::ToInt32($revision, 10)
 
+exec { & dotnet build .\src\JsonApiDotNetCore -c Release }
+exec { & dotnet build .\test\JsonApiDotNetCoreExampleTests -c Release }
+
 exec { & dotnet test .\test\JsonApiDotNetCoreExampleTests -c Release }
 
 exec { & dotnet pack .\src\JsonApiDotNetCore -c Release -o .\artifacts --version-suffix=$revision }