Archive FarsiTeX source and binary files

[behnam]

Files are available here: https://sourceforge.net/projects/farsitex/files/

Source files should be moved to the main GH repo: https://github.com/persian-computing/farsitex

Binary files can be attached to the main repo as Release artifacts, or put in a separate new repo.

[behnam]

Bonus: also add related PDF files, like this: https://www.tug.org/TUGboat/Articles/tb23-1/farsitex.pdf