Add paths to new data files

Now that we read the files from earlier years, we need to make sure we
package them up.

Author: php1ic

pyproject.toml

@@ -57,6 +57,9 @@ include = ["nuclearmasses"]
 
 [tool.setuptools.package-data]
 nuclearmasses = [
+ "data/1983/*.*", 
+ "data/1993/*.*", 
+ "data/1995/*.*", 
  "data/2003/*.*", 
  "data/2012/*.*", 
  "data/2016/*.*",