Add simple physics diagnostics

The following outfld calls exist in the simple physics schemes in CAM. Since these came in before history in CAM-SIMA, we're missing the diagnostics and we should add them back in.

**held-suarez**
QRS: `Temperature tendency associated with the relaxation toward the equilibrium temperature profile` (equivalent to TTEND)

**tj2016**
QRS: `Temperature tendency associated with the relaxation toward the equilibrium temperature profile`
KVH: `Vertical diffusion diffusivities (heat/moisture)`
KVM: `Vertical diffusion diffusivities (momentum)`
DTV: `T vertical diffusion`
DUV: `U vertical diffusion` (equivalent to UTEND)
DVV: `V vertical diffusion` (equivalent to VTEND)
VD01: `Q tendency (vertical diffusion)`