Add Unicode support

[bgadrian]

Currently the data has only ASCII (1byte character) data.

Most likely the real projects will have Unicode strings, with multi-language support, and by mocking the data with only a subset of the Unicode may lead to future problems.

Todo:

• check all the current functionalities that presumes 1 character = 1 byte (example Password.go)
• insert non-ASCII texts inside all /data files
• create new /data files with only non-ASCII runes
• create a Emoji() functionality