[coding-style] Add NestedTernaryToMatchRector

[TomasVotruba]

Kick of a rule https://x.com/GromNaN/status/1980916120623476893 from @GromNaN

Optional rule to allow use of match in verbose ternary conditions. Works best with 3+ nesting.

Now we're looking for edge cases :)

[GromNaN]

The ternary operator checks truthiness, while matches(true) checks strict true. You should cast to (bool) when the condition isn't guaranteed to be true.

[TomasVotruba]

@GromNaN Could you share simple before/after code snippet?

[TomasVotruba]

Let's ship first version to test in the wild 👍