feature request: api for own rust programs

[NikOverflow]

My idea is that you make an api that can be used in rust programs.

[hlorenzi]

You should be able to include customasm as a cargo dependency already. The lib.rs file exposes the internal modules that you can use in your own code, as is demonstrated by the assemble_str_to_binary function contained in the same file. Are you facing any particular issues?