Update the scatter_scores.R file

[mdsage1]

Scatter_scores.R is configured to handle the old challenge.

• Update output filename to match the RARE-X challenge, i.e. all_gene_scores_sc1.pdf should be changed to a more fitting name
• Confirm that scatter plot is relevant to current challenge specifications
• Determine what the following variables represent:
  baseline_magic <- "9732066"
baseline_deepimpute <- "9732074"
• Determine what old code is plotting the gene scores against

[mdsage1]

baseline_magic <- "9732066" is the baseline model submitted to the eval queue during a dry run. Still need to determine whether RARE-X requires a deepimpute model.