Improve risk score calculation performance for large datasets. Contribution by @hhubbell
Add other race in ACC/AHA 2013 ASCVD risk score. Other race have same risk as White race as used in the official online calculator. See #2.
Added two additional risk scores: - MESA 2015 10-year ASCVD risk (traditional risk factors) - MESA 2015 10-year ASCVD risk (using coronary artery calcium)
Out of range or missing inputs now return NA instead of erroring out
Initial CRAN release.