Pass SakuraAPI instance to various hook functions

[etsuo]

functions called by AuthNativeAuthority may not have local access to an instance of SakuraAPI. This should be passed as a parameter.

It might be good to have a parameter called meta that includes SakuraAPI, but might also include other things the implementer might want access too when these hooks are called. This could be declared in the plugin initialization.

Hooks

• onBeforeUserCreate
• onChangePasswordEmailRequest
• onForgotPasswordEmailRequest
• onJWTPayloadInject
• onLoginSuccess
• onResendEmailConfirmation
• onInjectCustomToken
• onUserCreated