Log more attribution params from AF

[pepf]

Summary

The current plugin cherry picks some fields from the Appsflyer payload to forward to Analytics.track():

analytics-react-native/packages/plugins/plugin-appsflyer/src/AppsflyerPlugin.tsx

Lines 79 to 85 in b5074f7

	const { af_status, media_source, campaign, is_first_launch } = res?.data;
	const properties = {
	provider: this.key,
	campaign: {
	source: media_source,
	name: campaign,
	},

The docs however indicate the payload can contain a lot more data, depending on various factors.
https://support.appsflyer.com/hc/en-us/articles/360000726098-Conversion-data-payloads-and-scenarios#deferred-deep-linking-with-srns

I understand this is where the Analytics.js "spec" for this event comes in, but would love to see a normalized way of retrieving some of the more granular data fields on the Appsflyer payload and forward them to Segment as event. A few fields I am specifically interested in:

• ad_id
• adset_id
• adset

Proposed Solution

Looking at the docs I see the meaning of these fields varies per partner (google,facebook etc..) so if this is too scary to implement on your end, maybe exposing a "mapper function" so we can fill in the blank properties on our end would be great :)