User consent

[vaind]

Have the SDK operate ‘properly’ but ‘hold off’ on sending events until consent is given. If revoked stop events from being sent again.

Depends on:

• Consider per-report Consent Checking sentry-native#110
• User Consent - Allow manual sending of events sentry-cocoa#1780
• User consent support sentry-java#1988
• User Consent support sentry-dotnet#1603

See also the meta issue at getsentry/team-mobile#24