Rearrange driver of CAM

Ideal engineering time: 3 days
Rearrange cam driver into sequential CCSM driver and CAM CCSM driver.Change names of surface models to: camcsim_comp, camdom_comp, camsom_comp
Make sure each falls into the CCSM/ESMF Stage-1 design hierarchy.

• Change surface component models to these names:
  -cam_comp
  -camcsim_comp
  -camdom_comp
  -camsom_comp
  Create 1-stage initialization, 2-stage run, and 1-stage finalization method from cam.F90 that just includes the CAM atmosphere.