Update: To Unicode 16 (back ported from 0.8.x).

Update: To Unicode 16 (back ported from 0.8.x).

This gets the code base up to date with **Unicode 16**.
I intend to follow this up with additional changes to update to **Unicode 17**.

I discovered that I accidentally had the unit tests disabled for the **Unicode** is_* functions.
Re-enable the tests and get things working.
Also add a "is_control_picture" unit tests.
I added additional logic that prints out useful information for when many of the **Unicode** related unit tests fail.
I intend to slowly add more such logic to all of me units tests over time.

I discovered that the combining characters might have marks in them that do not belong as punctuation.
I will have to follow this up with a bug fix to address all of these cases.
This will take some time.
I did not correct the unit tests within this commit to avoid doing a lot of that work right now.

I believe I also need to add is_mark functions to properly handle this and test for this.
This is will be a new feature to fix a bug.
I should also back port these changes to the 0.6.x series.

I also made some structural changes by adding some more if conditionals in situations where it seemed like there were too many checks in a given block set.