Add build number parameter for alpine based images
Add build number parameter for alpine based images

Signed-off-by: Arpad Boda <aboda@apache.org>

This closes #998

dtrodrigues/nifi-minifi-cpp,dtrodrigues/nifi-minifi-cpp,dtrodrigues/nifi-minifi-cpp,dtrodrigues/nifi-minifi-cpp,dtrodrigues/nifi-minifi-cpp