[MBL-1894] Add BuildPaymentPlan Query Support

[scottkicks]

📲 What

Updates GraphAPI and adds support for the new PLOT query

🤔 Why

This new query will tell us:

• Whether the project is enabled in our feature flag. We can use this to determine whether to show the PLOT unit at all
• If the project is enrolled, whether the amount meets or exceeds the threshold. This drives whether to show the PLOT checkout unit in an active state, such that PLOT is a selectable option.
• a set of increments with amount nodes (amount and currency) and scheduledCollection datetimes. This will be accurate to what will happen at collection time.

✅ Acceptance criteria

• I hooked this up in the checkout screen where we'll end up calling this query and verified that the response comes back with all of the data we need and is formatted correctly.
  • This is a test project currently setup with PLOT config that I've been using

[nativeksr]

	1 Warning
⚠️	Big PR

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