Code clean up

[FanWangEcon]

Code clean up to facilate robusntess works

Code to process input data and generate core input files

@Fan already cleaned this up, and @Fan will copy code over.

Code to generate and visualize four core results

Steps needed to implement these:

1. clean-up existing code implementation for results 1 through 4, with clearly defined input file at the top of each result's implementation file
   • clean up of result 1 implement: wrapper function for res 1 into cec_code/code_a_percdays_30years
     • @FanWangEcon move code
   • clean up of result 2 implement: wrapper function for res 2 into cec_code/code_b_childrenatrisk
     • @FanWangEcon move code
   • clean up of result 3 implement: wrapper function for res 3 into cec_code/code_c_popvsclimate
     • @szkaifeng find this
   • clean up of result 4 implement: wrapper function for res 4 into cec_code/code_d_regional
     • @szkaifeng find this
2. clean-up visualization: move/functionalize all visualization code to: cec_code/code_visualize, @szkaifeng identify where the code for each result is.
   • visualization for result 1
   • visualization for result 2
   • visualization for result 3
   • visualization for result 3

Code to run results

1. re-run existing results using cleaned up code
2. run new robustness checks.