Thermoelasticity with reference temperatures

[stvdwtt]

This PR does the following things:

• Adds a new state that tracks if the cell has been melted
• Adds functionality to adjust the state if the cell goes above a certain temperature
• Changes the thermal expansion to be vs a reference temperature that depends on whether the cell has melted
• Tests

[stvdwtt]

The CI failed, I'm going to look into it this afternoon. Oddly, it's passing on my machine. It could be an inconsistency between test input files in the repo and in my build directory.

[Rombur]

I don't know if you know but if you click on the Tests button on the top, you can see the error messages from the tests (see here). I don't think the problem is the input file. Are you using the latest version of the Docker image?

[stvdwtt]

I'm using the lastest version of rombur/adamantine-stack:latest, do you know if that has diverged from rombur/adamantine:latest?

[Rombur]

We use rombur/adamantine-stack:latest for the CI not rombur/adamantine:latest. rombut/adamantine:latest is automatically created when we merge a PR.

[stvdwtt]

I added a few more changes to address the errors in the CI.

• Fixes a mistake in how I handled hp elements
• Changes the PostProcess object to a unique pointer to address cases where mechanics is and is not included
• Changes Jenkins input to compile the "CPU" test with deal.ii weak forms
• Adds a check that deal.ii weak forms is linked if the input says that mechanical physics should be active (addresses #210)

Link to the new CI: https://cloud.cees.ornl.gov/jenkins-ci/blue/organizations/jenkins/adamantine/detail/adamantine/338/pipeline/

[stvdwtt]

@Rombur, the CI passed and this is ready for review.

[stvdwtt]

I added the dummy MechanicalPhysics and I believe have addressed all of the review comments.

CI