Test Bio.Tools can build X-Plat

.travis.yml

@@ -7,6 +7,7 @@ install:
   - nuget install -Prerelease NUnit.Console -Version 3.0.0-beta-3 -OutputDirectory testrunner  
 script:
   - xbuild /p:Configuration=Release src/Bio.Mono.sln
+  - xbuild /p:Configuration=Release src/BioTools.sln
   - mkdir TestUtils
   - cp ./src/Source/Tests/Bio.Tests/bin/Release/* TestUtils/
   - cp -r ./src/Source/Tests/TestData/TestUtils/* ./TestUtils/