Have the ability to create custom rules, closes #1162

[Guillergood]

Description

Have the ability to create custom rules, right now we do not have a way to create a new class to put in setCustomRules, the closest thing is:

class QuillCustomDeleteRule extends InsertRule

which is not ideal, so why not import all rules folder?

Related Issues

It fixes #1162

Type of Change

• ✨ New feature: Adds new functionality without breaking existing features.
• 🛠️ Bug fix: Resolves an issue without altering current behavior.
• 🧹 Code refactor: Code restructuring that does not affect behavior.
• ❌ Breaking change: Alters existing functionality and requires updates.
• 🧪 Tests: Adds new tests or modifies existing tests.
• 📝 Documentation: Updates or additions to documentation.
• 🗑️ Chore: Routine tasks, or maintenance.
• ✅ Build configuration change: Changes to build or deploy processes.