Create addUserData method in the analytics providers

This allows us to globally add arbitrary data to the events and transactions

services/analyticsproviders/sentry/src/main/kotlin/io/element/android/services/analyticsproviders/sentry/SentryAnalyticsProvider.kt

@@ -86,6 +86,10 @@ class SentryAnalyticsProvider(
     override fun updateSuperProperties(updatedProperties: SuperProperties) {
     }
 
+    override fun addUserData(key: String, value: String) {
+        Sentry.setExtra(key, value)
+    }
+
     override fun trackError(throwable: Throwable) {
         Sentry.captureException(throwable)
     }