v69.0.35 Support JSON file families and pluralization

According to the ".JSON - Simple (Strings)" description of the Phrase API

v69.0.34 Support CSV file families

Currently only standard CSV files are supported (',' as separator & ' " ' as quote)

The file family naming scheme should be the same as for ResX just with ".csv" extension:

• Mandatory default file "{Name}.csv"
• For each localized culture a file with the culture code separated by a dot "{Name}.en.csv"

v69.0.22

Small fix

v69.0.21

Replacing dots with underscore for property names