Update to Unicode 15.0.0

[wismill]

Update to Unicode 15.0.0.

Fixes#85.

[wismill]

Note that since this version is not supported yet by any published GHC version, you need to use GHC HEAD or one of myMR to run the tests and benchmark properly.

[wismill]

Rebased

[wismill]

@harendra-kumar kind reminder

[harendra-kumar]

Looks good to me. Though I only took a quick look, and I did not verify if we actually took the right unicode sources to generate the code. @adithyaov would you like to take a look as well?

[adithyaov]

LGTM

[wismill]

@harendra-kumar@adithyaov
Candidates:

• unicode-data
• unicode-data-names
• unicode-data-scripts
• unicode-data-security

[wismill]

@harendra-kumar@adithyaov candidates published

[harendra-kumar]

@wismill I cannot find the candidates, the links above do not work.

[wismill]

@harendra-kumar I mean I published the new version, after the candidate stage.