Fix align year

[ekluzek]

Description of changes

Fix the align year issue. Fix a total of three issues.

Specific notes

Contributors other than yourself, if any:

CMEPS Issues Fixed (include github issue #):
Fixes #86
Fixes #89
Fixes #91

Are there dependencies on other component PRs: No

• CIME (list)
• CMEPS (list)

Are changes expected to change answers?

• [ x] bit for bit
• different at roundoff level
• more substantial
  Technically tests with the 1PT sites will be different because the start date is different.

Any User Interface Changes (namelist or namelist defaults changes)?

• Yes
• [ x] No

The one caveat is that now $DATM_YR is enabled to work for the 1PT sites

Testing performed:

• [ x] (required) aux_cdeps
  • machines and compilers: cheyenne_intel
  • failed tests: Since I tested in a CTSM checkout the DLND test fails as expected, but as no changes to dlnd this shouldn't matter:
    SMS_Vnuopc_Ld3.f09_f09_mg17.1850_SATM_DLND%SCPL_SICE_SOCN_SROF_SGLC_SWAV.cheyenne_intel

Hashes used for testing:

• CIME
  • repository to check out: https://github.com/ESCOMP/CESM.git
  • tag: cime5.8.47
• CMEPS
  • repository to check out: https://github.com/ESCOMP/CESM.git
  • tag; v0.10.0
• CTSM
  • repository to check out: https://github.com/jedwards4b/CESM.git
  • branch: neon_compsets
  • hash: ctsm5.1.dev038-43-gd43264c75

[ekluzek]

@jedwards4b and @mvertens let me know if there's anything else you want me to change here. I'll need this in a tag for CTSM. Thanks.