Transliterates Latin letters a-z and A-Z, and Digits 0-9 to their Blackboard bold Unicode Mathematical Alphanumeric Symbols block mathematical double-struck equivalent.

- See: https://www.unicode.org/charts/
  - See: Alphanumeric Symbols -> Letterlike Symbols (Click for a PDF)
- See: https://en.wikipedia.org/wiki/Blackboard_bold
- See: https://en.wikipedia.org/wiki/Mathematical_Alphanumeric_Symbols