Should `ip_address` be automatically filled by Sentry servers

[krystofwoldrich]

Description

At the moment the SDK doesn't send ip_address by default it's guarded by the sendDefaultPii: false (default) options.

After this change, the SDK will send ip_address = {{auto}} when sendDefaultPii: false (default), and Sentry servers will infer the ip_address value from the HTTP requests.

Users can remove the {{auto}} in beforeSend, so the servers do not infer the value or can use the project configuration that has a toggle to disable storing the IP address.

-backlink getsentry/team-mobile#144

[kahest]

superseded by getsentry/team-sdks#118