Build binary test actions from source

Apache source releases should not include compiled files or other binary artifacts.

Our git repo includes binary artifacts as listed below that are used as input to our test suite. We should add support for building these artifacts from source so that it is possible to run the full openwhisk test suite from a pure source release.

```
tests/dat/actions/helloSwift311.zip: application/zip; charset=binary
tests/dat/actions/sleep.jar: application/java-archive; charset=binary
tests/dat/actions/helloJavaDefaultPackage.jar: application/java-archive; charset=binary
tests/dat/actions/python_virtualenv_name.zip: application/zip; charset=binary
tests/dat/actions/zippedaction.zip: application/zip; charset=binary
tests/dat/actions/helloJava.jar: application/zip; charset=binary
tests/dat/actions/python37_virtualenv.zip: application/zip; charset=binary
tests/dat/actions/python_virtualenv_dir.zip: application/zip; charset=binary
tests/dat/actions/multiSwift.zip: application/zip; charset=binary
tests/dat/actions/python3_virtualenv.zip: application/zip; charset=binary
tests/dat/actions/unicode.tests/ballerina-0.990.bin: application/octet-stream; charset=binary
tests/dat/actions/unicode.tests/dotnet-2.2.bin: application/zip; charset=binary
tests/dat/actions/unicode.tests/java-8.bin: application/zip; charset=binary
tests/dat/actions/python.zip: application/zip; charset=binary
tests/dat/actions/blackbox.zip: application/zip; charset=binary
tests/dat/actions/python2_virtualenv.zip: application/zip; charset=binary
tests/performance/gatling_tests/src/gatling/resources/data/javaAction.jar: application/java-archive; charset=binary)
```