Provide way to query user consent requirement at runtime

[nwhite-riot]

Sentry Native user consent is configured with options, but once the SDK has been initialized, there's no way to query if user consent is required at runtime. For the SDK and most users, this isn't an issue, but the Unreal plugin needs to expose a lot more context so that games can handle specific scenarios (e.g. telemetry for the number of users that have crash reporting enabled)

[linear]

NATIVE-140

[nwhite-riot]

Ah, it looks like I could use sentry__options_lock to achieve this, but it's not part of the exposed Sentry API

[tustanivsky]

@nwhite-riot Looking to add a public getter for the consent requirement flag via #1443.