Handle dependencies with smaller time increments

[forsyth2]

Handle dependencies with smaller time increments. Resolves #599

[forsyth2]

In the latest implementation:

$ cd /lcrc/group/e3sm/ac.forsyth2/zppy_test_complete_run_output/test_599-post-600v3/v2.LR.historical_0201/post/scripts
e3sm_diags_atm_monthly_180x360_aave_model_vs_obs_1850-1851.status:WAITING 548775
e3sm_diags_atm_monthly_180x360_aave_model_vs_obs_1850-1853.status:WAITING 548777
e3sm_diags_atm_monthly_180x360_aave_model_vs_obs_1852-1853.status:WAITING 548776
e3sm_diags_atm_monthly_180x360_aave_mvm_model_vs_model_1852-1853_vs_1850-1851.status:WAITING 548782
e3sm_diags_lnd_monthly_mvm_lnd_model_vs_model_1850-1851_vs_1850-1851.status:WAITING 548783
global_time_series_1850-1860.status:WAITING 548786
ilamb_1850-1853.status:WAITING 548787
mpas_analysis_ts_1850-1854_climo_1850-1854.status:WAITING 548784
mpas_analysis_ts_1850-1860_climo_1855-1860.status:WAITING 548785

This pull request doesn't even touch mpas_analysis.py so it is unclear why those tasks are affected.

[forsyth2]

Test of min_case_add_dependencies shows 2 errors:

1st, global time series is looking for the wrong dependency:

global_time_series_1985-1994
...skipping because of dependency status file missing
   /lcrc/group/e3sm/ac.forsyth2/zppy_min_case_add_dependencies_output/unique_id/v3.LR.historical_0051/post/scripts/ts_atm_monthly_glb_1985-1994-0010.status

We want two 5-year increment ts files...

2nd, e3sm_diags_atm_monthly_180x360_aave_model_vs_obs_1985-1994 is failing: ref_start_yr = doesn't get defined in e3sm.py.

[forsyth2]

Tested with min_case_add_dependencies