Mostly minor things

[chporter]

Changes to code:

1. Fix an initialization error in Denit_Ceres. Add DLAG = 0.0 in SEASINIT.
2. Modify GHG output variable names to have different variable names for end of season and daily cumulative.
3. Also added GHG variables to differentiate units of g/ha from kg/ha.

Differences to Summary.OUT (compared to v4.8.1.6):

1. Some N outputs are different by small amounts < 5% (generally because of output precision).
2. Growth variables have maximum difference of 1.5% for one rice experiment (UAFD0011, trt 1).
3. Minor differences were found for rice, cabbage (one exp, N2O only), brachiaria (very minor).

@fabiooliveira72 , I think it's good to go, but please check with your testing procedures.

[fabiooliveira72]

Hi @chporter

I reviewed the pull request too and found the same Differences to Summary.OUT (compared to v4.8.1.6) as you.

The pull request is good.

Please let me know if you need something else.

Thank you,

[fabiooliveira72]

Ready to pull request. Clean and good code!