Forth Foundation Library 0.5.0

Forth Foundation Library, in short FFL is a Forth library. It gives you a collection of words written in (ANS) forth which are useful in areas such as data types, collections, interfaces, development support, and compound modules.
The modules in the library are grouped in five clusters:
- Data types - char
- Collections - single linked list
- Interfaces - crc-32
- Development - struct, unit test
- Compound - nothing yet.
Enhancements:
- This release adds four new features to the library, including an n-tree with an iterator, a SHA-256 module, and a regular expressions module.
- The library will now also run on MinForth.