CTSM-FATES timing/cost

@rosiealice @ckoven @wwieder @ekluzek Following up on conversations we had about CTSM-FATES costs at the LMWG meeting. The new CSL allocation request is going to need to be written this summer and this would be good opportunity to try to establish at least general FATES costs, relative to big-leaf CTSM, for the purpose of writing the proposal. I'm aware that the costs will be more variable through time, but even a ballpark estimate would be helpful for perhaps the SP version and the full competition BGC version. I'd be happy to explore myself, which would give me opportunity to run FATES for the first time. Perhaps @rosiealice could point me to two relevant cases (SP, BGC full competition) to start with.

Definition of done:

- [ ] Upload timing results for FATES-SP
- [ ] Upload timing results for FATES-fixed-BGP