Feature/indices at every level (#12)
Feature/indices at every level (#12)

* Renamed terminal_indices to indices

* Left binding in where broken

* Allow metadata to be accessed and correctly applied to a CHAID Vector

* Enable iteration over CHAIDVector

* Updated slice method

* Fixed numbers

* Correct labelling

* Neated slice

* Added docs

* Stopped returning new vector by accessing proerties

Rambatino/CHAID