benchpark python script to grab programming models

[pearce8]

A script to access info in experiment.py:

class Amg2023(
    Experiment,
    OpenMPExperiment,
    CudaExperiment,
    ROCmExperiment,
    StrongScaling,
    WeakScaling,
    ThroughputScaling,
    Caliper,
):

For now, we would use benchpark-python. Once experiments become Spack packages, we could use
spack-python (https://spack-tutorial.readthedocs.io/en/latest/tutorial_spack_scripting.html). #138 is an example of using spack-python.