Update liblouis to version 3.8, add debug logging functionality and cleanup old workarounds that are no longer necessary (#9015)
* Update liblouis to 3.8
* New and updated braille tables
* Sign liblouis with the NV Access certificate, so NVDA builds of liblouis can be identified as such
* Update to commit 90a808bf which fixes a bug in the python wrapper
* Add a louis helper module
* Typo in logHandler
* Update configSpec
* Integrate louisHelper into the braille module
* Move some logic from braille to louisHelper
* Revert commit 79940e474786a0bfe417528138abf7ef7a2eace5 as testing reveals that this issue does no longer exist
* Remove another workaround for bugs that are fixed upstream
* louisHelper review action: log at level debug
* Update what's new and correct comment.