User script for installing GATK with necessary libraries for CNN

[akarukappadath]

<your comments for this PR go here>

Have you read CONTRIBUTING.md lately? If not, do that first.

I, the developer opening this PR, do solemnly pinky swear that:

• I've documented my API changes in Swagger

In all cases:

• Get a thumbsworth of review and PO signoff if necessary
• Verify all tests go green
• Squash and merge; you can delete your branch after this
• Test this change deployed correctly and works on dev environment after deployment

[akarukappadath]

jenkins retest

[rtitle]

LGTM