Add functional app template

[mmcfarland]

Overview

Brings in an app template modified to reflect anticipated dependencies for this project. The environment successfully bootstraps with setup and server, though additional changes may be required to adjust other STRTA scripts.

Notable changes from the core template are:

• Vagrant base box upgraded to Ubuntu 20.04
• Uses Python3 for Ansible and VM-based script execution

Connects #1

Testing Instructions

After cloning the repository and checking out this branch:

• Run ./scripts/setup to bootstrap the environment
• Log onto the VM and run the server to see the default CRA app hosted via WDS on http://localhost:3333 vagrant ssh && ./scripts/server
• Check that other scripts (notably, not cibuild) are in working order
• Check that the documentation is generally correct

[TaiWilkin]

@mmcfarland ./scripts/setup is failing with the message:

ERROR! the role 'azavea.pip' was not found in ansible.legacy:/vagrant/deployment/ansible/roles:/vagrant/deployment/ansible/roles:/vagrant/deployment/ansible/roles:/vagrant/deployment/ansible

The error appears to be in '/vagrant/deployment/ansible/roles/fb-gender-survey.docker/meta/main.yml': line 3, column 5, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

dependencies:
  - { role: azavea.pip }
    ^ here
Ansible failed to complete successfully. Any error output should be
visible above. Please fix these errors and try again.

[mmcfarland]

Sorry, I left some debugging comments in. Reverted in a22b976.

[mmcfarland]

Thanks for the review. I should have destroyed and re-run the setup script one final time prior to opening this PR.