[Clas12_rgb] rgb spring2020 cooking and train

[Zhiwen Zhao]

Dear All

rgb spring2020 (old name winter2020) data pass1v1 cooking is in progress.
40% has been cooked so far

file location
decoded /cache/clas12/rg-b/production/decoded/6.5.6
dst 
/cache/clas12/rg-b/production/recon/spring2020/torus-1/pass1/v1/dst/recon
skim 
/volatile/clas12/rg-b/production/recon/spring2020/torus-1/pass/v1/dst/train

refer to
https://clasweb.jlab.org/wiki/index.php/Run_Group_B#Software_and_Data

Zhiwen