#208 Add scala subworkflow ex Pull request opened by sonjaer TL;DR We have subworkflow example in java, but not in scala Type ☐ Bug Fix ☑︎ Feature ☐ Plugin Are all requirements met? ☐ Code completed ☐ Smoke tested ☐ Unit tests added ☑︎ Code documentation added ☐ Any pending items have an associated Issue Complete description Adding a scala example so users can see how to write workflows using subworkflows. flyteorg/flytekit-java ✅ All checks have passed 3/3 successful checks