Add TPE examples.

[MTCam]

Adds TPE versions of selected examples to test TPEs with:

• Inviscid fluid
• Mixture/Chemistry
• Viscous flow/noslip BC
• Thermally-coupled fluid/wall

CC: @a-alveyblanc

Questions for the review:

• [ ] Is the scope and purpose of the PR clear?
  • [ ] The PR should have a description.
  • [ ] The PR should have a guide if needed (e.g., an ordering).
• [ ] Is every top-level method and class documented? Are things that should be documented actually so?
• [ ] Is the interface understandable? (I.e. can someone figure out what stuff does?) Is it well-defined?
• [ ] Does the implementation do what the docstring claims?
• [ ] Is everything that is implemented covered by tests?
• [ ] Do you see any immediate risks or performance disadvantages with the design? Example: what do interface normals attach to?

[tulioricci]

I removed the spatial dependence in autoignition.py in a past PR, so there is no point in adding TPE to it. Better to modify mixture.py or I can add TPE to the flame driver in https://github.com/illinois-ceesd/mirgecom/pull/995

[MTCam]

I removed the spatial dependence in autoignition.py in a past PR, so there is no point in adding TPE to it. Better to modify mixture.py or I can add TPE to the flame driver in #995

Removed autoignition-tpe, added mixture-tpe.