Extending CFL adapt to include species transport

[Cristopher-Morales]

Proposed Changes

It would be good to extend the CFL_ADAPT option to include species transport for compressible flows.

I can add a test case if it is needed.

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[bigfooted]

Hi Cristopher, Can you check how the underrelaxation is computed for species transport?

[pcarruscag]

So what is the deal with this PR? I see a question, no answer, and all I get is "merge branch develop" emails...