Add CI/CD

Add a skeleton CI/CD to build and run the performance test for DP3.

requested review from @veenboer

assigned to @mancini

added 1 commit

• 9d22c4f2 - Implement referee suggestions

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• 5280d456 - Clean spack env

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• 7a69ecfb - Remove debugging prints

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resolved all threads

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• 1810c694 - Fix running script

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• 00bc5440 - Print command before executing

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• 452b3776 - Put parset first

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