Start JSDoc comments. Add addEntropy() helper.
Start JSDoc comments. Add addEntropy() helper.

Working on adding JSDoc comments for all functions. First commit there.

The addEntropy() function is only for those wishing to add external entropy, such as from a HWRNG,
and are willing to dig into the source code to make it happen. Not necessarily advertised, but
available.

atoponce/webpassgen,atoponce/webpassgen