Adding Integreatly supported versions file

pmccarthy

2019-05-14 20e635ddcad119d0b66629c62909f9c4c737665b

Adding Integreatly supported versions file

 ansible/roles/ocp-workload-integreatly/files/supported_versions.json

New file
@@ -0,0 +1,5 @@
{
  "dev": ["1.2.1", "1.3.0"],
  "test": ["1.2.1", "1.3.0"],
  "prod": ["1.2.1", "1.3.0"]
}