This commit implements fix for an issue where mixed punctuation can be rendered in the wrong order.
A regression test has been added to catch this in the future.
This commit encapsulates the following:
* Removal of public Unicode classes.
* Move to new 'blob' generated data format.
* Fix issue where numerical characters would be assigned incorrect bidirectional levels, resulting in them rendering in the wrong order.
* Adds a unit test for the number ordering issue.
* Refactor of Bidirectional and Line breaking algorithms.
