Support for v flag & update regexpp

[ota-meshi]

Description

regexpp added support for the v flag.
Since the AST has changed along with this, many Type errors have occurred. we need to fix them.
Also, some rules need to be fixed to understand the v flag.

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At least the following TS errors should be fixed.

• regexp/negation rule
• regexp/no-contradiction-with-assertion rule
• regexp/no-dupe-characters-character-class rule
• regexp/no-dupe-disjunctions rule
• regexp/no-misleading-capturing-group rule
• regexp/optimal-quantifier-concatenation rule
• regexp/prefer-character-class rule
• regexp/sort-character-class-elements rule
• regexp/use-ignore-case rule
• lib/utils/index.ts
• lib/utils/partial-parser.ts
• lib/utils/regexp-ast/case-variation.ts
• lib/utils/regexp-ast/index.ts
• lib/utils/regexp-ast/is-equals.ts
• lib/utils/regexp-ast/simplify-quantifier.ts

[RunDevelopment]

Fixing the type error won't be enough. refa and RAA can't deal with the v flag at all right now. I'll try to add support to both today.

[RunDevelopment]

Quick update: I have implemented support for the v flag in refa and RAA. This took a lot longer than expected. It's not released yet, because I still want to test it some more.

Also, while implementing this, the full scope of what we'll have to do dawned on me. We'll probably have to update all rules that interact with characters classes/sets in any way, not just the ones with type errors.