[clean] bgc.f90 spaces
[add] old python files
Merge branch 'master' of https://github.com/okadate/bgc
[delete] old green file to old folder
[add] .gitignore
[add] bgc_param4g.h
[change] plot data file to out/
[update] green main program
[change] time step parameter
[change] the parameters (DO, POM)
[fix] input & output
[hotfix] UBi = 2
[WIP]