Basic tools and utilities - replace the util :: core bundle to avoid dependencies. This bundle should not have dependencies, but defines some core interfaces and techniques.
Provides a symbol to integer mapping that is the base of a lot of servises that work with symbols. A symbol is a, in it's context, unique word. Unlike a GUID or UUID a symbol is human readable and represents something. Symbols are often part of something we call classic artificial intelligence. Once a symbol is mapped to an integer this mapping never changes.