* Updated docker images to use python3
* Updated docker compose files.
* Test Travis CI
* Test Travis CI
* Updated Dockerfiles.
* Updated .travis.yml
* Cleaned up scripts.
* Cleaned up scripts.
* Updated docker-compose files.
* Updated amazonlinux2 image with python3.
* Updated system test driver.
* Updated system test driver
* Cleaned up import in test driver.
* Updated setup scripts to output python version
* PACCOR Testing.
* PACCOR Testing.
* PACCOR Testing.
* PACCOR Testing
* PACCOR Testing
* Updated Dockerfile.tpm2provisioner
* Cleaned up files.
* Point to the updated tpm2provisioner in hirs/hirs-ci, on Docker Hub.
* Cleaned up files.
* Used specific PACCOR script(allcomponents_hirs_system_test.sh) for
system tests.
* Added new PACCOR script for review.
Will be moved into the PACCOR project when permissions are granted.
