Remove CAMSURF, COUP_CSM and COUP_SOM ifdefs

CAMSURF
Remove CAMSURF ifdefs – provided needed simulations are done.
This part was checked in as CAM3.2.12
Resolve COUP_CSM ifdefs in following:
Some of this was already done on the subrt branch.
Some of the following will be ok, but big parts of COUP_CSM code
will need to be moved to methods inside of ccsm_msg. Some restructuring of ccsm_msg will also need to be done.We'll also
add a #ifdef called COUP_DOM to replace some of the #ifndef COUP_CSM
ifdef currently in place.
Ideal-engineering days: 1.5 weeks.

• abortutils - ok
• cam – move cpl_interface calls to ccsm_msg methods
• ccsm_msg – ok
• history – move CPL addfld calls to ccsm_msg.
• initext – ok
• mpishorthand – ok
• restart – OK
• rstwr – ok
• runtime_opts – create namelist _opts methods for ccsm_msg.
• spmdinit (later)
• inidat - ok
• inital – ok
• stepon – move ccsmfin call outside, make ccsm stop logic more similar
• co2_cycle (later)
• diagnostics – move ice/ocn addfld, add_default, outfld calls to relevent location, always output, ?BOT, QREFHT, store PSL?
• comsrfdiag – ok
• physpkg – move location of surface output calls so doesn't appear in stepon.
• restart_physics – create ocn read_restart, write_restart methods, figure out how to handle fsnt, flnt, flns
• srfxfer – Remove PRECLav, PRECCav outfld calls, always calc rho and netsw.
  Resolve COUP_SOM ifdefs in following
• initext – ok
• history – move addfld, add_default, calls to SOM code.
• runtime_opts – Create som_opts methods for namelist items.
• comsrfdiag – ok
• diagnostics – move outfld calls inside of som or dom code.
• physpkg – ok
• restart_physics – create write_restart read_restart methods for dom/som