[WEB-970] Add CAPI Events

[scottkicks]

📲 What

Triggers our new triggerCapiEvent mutation in the following cases

Event Cases:

• Project page visit
• Initiate checkout (selects a reward)
• Add new payment method
• Purchase (have reached the thank you page)

Events should only trigger if the following is true:

1. The member has given their consent for KS to track them via AppTrackingTransparencey.trackingAuthorizationRequest
2. The sendMetaCapiEvents property on the project is true.

🤔 Why

This mutation helps us collect data on those members that have entered the app via a FB ad. Since iOS members can opt out of 3rd party app tracking, our FB pixel could be rendered useless. Facebook's CAPI (Conversions API) allows us to collect tracking data server to server, essentially getting around this issue.

It's important to note that Facebook does some magic on their end to associate the member emails we send to them with ad clicks so it's important that we send this value back whenever possible. There is of course the case where someone has enters from an ad and doesn't not log in/create an account.

🛠 How

Created a new service:

• AppTrackingTransparency: for getting authorizationStatus and advertisingIdentifier

Then I just made those calls in the correct places according to the cases listed above

Note: We've been using this project for testing. It has its sendMetaCapiEvents property set to true.

[codecov]

Codecov Report

Merging #1798 (1447d1a) into main (6d05a96) will decrease coverage by 0.05%.
The diff coverage is 52.47%.

❗ Current head 1447d1a differs from pull request most recent head eee1ee4. Consider uploading reports for the commit eee1ee4 to get more accurate results

@@            Coverage Diff             @@
##             main    #1798      +/-   ##
==========================================
- Coverage   85.45%   85.40%   -0.05%     
==========================================
  Files        1282     1283       +1     
  Lines      117291   117469     +178     
  Branches    31042    31073      +31     
==========================================
+ Hits       100226   100323      +97     
- Misses      15990    16068      +78     
- Partials     1075     1078       +3     

Impacted Files	Coverage Δ
Library/Tracking/AppTrackingTransparency.swift	0.00% <0.00%> (ø)
Library/Tracking/KSRAnalytics.swift	82.62% <ø> (ø)
Library/Tracking/KSRAnalyticsTests.swift	99.60% <ø> (ø)
...ibrary/ViewModels/RewardsCollectionViewModel.swift	90.29% <33.33%> (-7.33%)	⬇️
...ary/ViewModels/PledgePaymentMethodsViewModel.swift	93.25% <38.70%> (-4.59%)	⬇️
Library/ViewModels/ProjectPageViewModel.swift	93.39% <44.44%> (-4.32%)	⬇️
Library/ViewModels/ThanksViewModel.swift	91.53% <50.00%> (-7.23%)	⬇️
Library/ViewModels/PledgeViewModel.swift	97.70% <60.86%> (-0.82%)	⬇️
...ontroller/PledgePaymentMethodsViewController.swift	46.35% <66.66%> (+0.84%)	⬆️
Kickstarter-iOS/AppDelegateViewModel.swift	93.42% <100.00%> (+1.78%)	⬆️
... and 6 more

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[msadoon]

Ok, good first shot at this.
There's a lot of comments of here, but mostly just following existing conventions and reducing the network requests required.

Let's pair on any of this if you have questions.

[msadoon]

We're getting there!

A few more suggestions and its' good to go!

[msadoon]

Ok very close, just a few more comments and next pass should be mergeable.

[msadoon]

Let tests pass and good to go!