Create BST Subject-Level Data Frame

[EvrimBaykal]

In analysis_simple files, modify the subject-level data frame with scores for use in analysis_interactive.R.

• [x] AMP
• [ ] IAT
• [x] MRS
• [x] SRS
• [x] IMS-EMS
• [x] Contact Measures
• [x] Chronic Stress: PSS score, median split, category
• [x] Acute Stress: Bath Ratings
• [x] Acute Stress: Cortisol
• [x] TR Mean
• [x] TG Mean