Support all nullable settings

[mob-sakai]

• enable: The nullable annotation context is enabled. The nullable warning context is enabled.
  • Variables of a reference type, string for example, are non-nullable. All nullability warnings are enabled.
• warnings: The nullable annotation context is disabled. The nullable warning context is enabled.
  • Variables of a reference type are oblivious. All nullability warnings are enabled.
• annotations: The nullable annotation context is enabled. The nullable warning context is disabled.
  • Variables of a reference type, string for example, are non-nullable. All nullability warnings are disabled.
• disable: The nullable annotation context is disabled. The nullable warning context is disabled.
  • Variables of a reference type are oblivious, just like earlier versions of C#. All nullability warnings are disabled.

[github-actions[bot]]

:tada: This issue has been resolved in version 1.3.0 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: