Add config option for custom types

[Jackenmen]

I can see you're currently using angular's commit types (through npm package conventional-commit-types) and I think it would be a nice addition to add support for own commit types - either a config option like "additionalTypes" that would allow us to just add more types on top of the ones that are already in conventional-commit-types or a simple config option like "types" that would be used instead of conventional-commit-types.

Note that this isn't a request that requires you to support other conventional-changelog conventions and their different syntaxes, but just a request for an option that would allow people to extend already existing types with their own.

To add a little context, personally I would use this to add "enhance" type:

"enhance": {
    "description": "A code change that improves current functionality",
    "title": "Enhancements"
}

[commitizen-bot]

🎉 This issue has been resolved in version 3.2.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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