Update word reports

[bambooforest]

The database should only go to the line level. Todo: update the words, graphemes, ttr reports so that they use the line version of the database and not the experimental words version.

[bambooforest]

Database only goes to the word level now. And word frequency counts can be generated

https://github.com/uzling/100LC/blob/master/Reports/word_frequency/word_frequency_per_file.md

with the clc package function: clc::get_word_counts