Option: Add static enum builder method

[FxMorin]

Overview

Description:
EnumOption is the only option type that doesn't have a static builder method defined in Option.
This PR adds the missing method.

Changes:
Added the missing enum option builder in Option

Code Example (If applicable):

EnumOption<SomeEnum> enumOption = Option.<SomeEnum>enumerator()
        .node("example", "option-id").type(TypeToken.get(SomeEnum.class))
        .notifyClient()
        .build();

Related Issue (If applicable):

Screenshots and/or Videos (If applicable):

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Review Request Checklist

• Your code follows the style guidelines of this project.
• I have performed a self-review of my code.
• I have tested this change myself. (If applicable)
• I have made corresponding changes to the documentation. (If applicable)
• The branch name follows the projects naming conventions. (e.g. feature/add-module & bugfix/fix-issue)

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