chore(package): Add "pretest" npm script
chore(package): Add "pretest" npm script

Add "pretest" script that ensures that the cli module has been built properly before testing it.

base16-builder/base16-builder,aloisdg/base16-builder,aloisdg/base16-builder,aloisdg/base16-builder,base16-builder/base16-builder,base16-builder/base16-builder