combined FP and PP files

[jsadler2]

Currently the functional performance and predictive performance files are all in their own model files (e.g., 2a_model/out/models/0_baseline_LSTM/).
For plotting and analysis, we are almost always combining them.
I suggest we have a target that combines them once and then all our plotting/analysis scripts can use that one file instead of each script combining them.

[jsadler2]

For example:

drb-do-ml/3_visualize/src/plotting_script_delete_later.R

Line 11 in c880b29

p3_overall_metrics <- lapply(p2a_metrics_files, function(x){