t8n tool improvements

[gurukamath]

The current t8n tool, although fully functional has a lot of room for improvement. An update /re-build of the tool might be in order. The following improvements would be good to have

1. Updates to the specs are automatically reflected in the t8n tool without a need for explicitly updating it
2. Improve tracing implementation
3. Make the t8n tool code more maintainable. (re-factor/re-build components)
4. Implement a tighter type system
5. Reduce code duplication with other spec tools