ICU-20693 Simple Ant runner for Mark's testing work.

[hagbard]

Checklist

• [x] Issue filed: https://unicode-org.atlassian.net/browse/ICU-20693
• [x] Updated PR title and link in previous line to include Issue number
• [x] Issue accepted
• [ ] Tests included
• [ ] Documentation is changed or added

[jira-pull-request-webhook[bot]]

Hooray! The files in the branch are the same across the force-push. 😃

~ Your Friendly Jira-GitHub PR Checker Bot

[jira-pull-request-webhook[bot]]

Hooray! The files in the branch are the same across the force-push. 😃

~ Your Friendly Jira-GitHub PR Checker Bot