Merged PR 3387: Adds Guest Payments metrics

# Description

Adds Guest Payments metrics, namely:
* deposit_fees_in_gbp
* waiver_payments_in_gbp
* checkin_cover_fees_in_gbp
* total_guest_payments_in_gbp

It includes:
* Daily model
* Monthly/MTD without dimension aggregates
* Monthly/MTD with dimension aggregates
* Schema entries for the abovementioned 5 models
* Temporary test to compare the different metrics against current production KPIs

# Checklist

- [X] The edited models and dependants run properly with production data.
- [X] The edited models are sufficiently documented.
- [X] The edited models contain PK tests, and I've ran and passed them.
- [NA] I have checked for DRY opportunities with other models and docs.
- [X] I've picked the right materialization for the affected models.

# Other

- [ ] Check if a full-refresh is required after this PR is merged.

Related work items: #23453

tests/tmp_kpis_refactor_equivalent_guest_payments.sql

@@ -0,0 +1,92 @@
+{% set min_date = "2022-01-01" %}
+{% set dimensions = ("global", "by_billing_country") %}
+-- "by_number_of_listings" excluded on purpose - there's differences because of daily
+-- segmentation
+with
+    new_mtd_guest_payments as (
+        select
+            end_date as date,
+            dimension,
+            dimension_value,
+            deposit_fees_in_gbp,
+            waiver_payments_in_gbp,
+            checkin_cover_fees_in_gbp,
+            total_guest_payments_in_gbp
+        from {{ ref("int_kpis__aggregated_mtd_guest_payments") }}
+        where
+            end_date >= '{{ min_date }}'
+            and dimension in {{ dimensions }}
+            and dimension_value <> 'UNSET'
+    ),
+    new_monthly_guest_payments as (
+        select
+            end_date as date,
+            dimension,
+            dimension_value,
+            deposit_fees_in_gbp,
+            waiver_payments_in_gbp,
+            checkin_cover_fees_in_gbp,
+            total_guest_payments_in_gbp
+        from {{ ref("int_kpis__aggregated_monthly_guest_payments") }}
+        where
+            end_date >= '{{ min_date }}'
+            and dimension in {{ dimensions }}
+            and dimension_value <> 'UNSET'
+    ),
+    new_guest_payments as (
+        select *
+        from new_mtd_guest_payments
+        union all
+        select *
+        from new_monthly_guest_payments
+    ),
+    old_guest_payments as (
+        select
+            date,
+            dimension,
+            dimension_value,
+            deposit_fees_in_gbp,
+            waiver_payments_in_gbp,
+            checkin_cover_fees_in_gbp,
+            total_guest_payments_in_gbp
+        from {{ ref("int_core__mtd_guest_payments_metrics") }}
+        where date >= '{{ min_date }}' and dimension in {{ dimensions }}
+    ),
+    comparison as (
+        select
+            coalesce(o.date, n.date) as date,
+            coalesce(o.dimension, n.dimension) as dimension,
+            coalesce(o.dimension_value, n.dimension_value) as dimension_value,
+            o.deposit_fees_in_gbp as old_deposit_fees_in_gbp,
+            n.deposit_fees_in_gbp as new_deposit_fees_in_gbp,
+            coalesce(o.deposit_fees_in_gbp, 0)
+            - coalesce(n.deposit_fees_in_gbp, 0) as diff_deposit_fees_in_gbp,
+            o.waiver_payments_in_gbp as old_waiver_payments_in_gbp,
+            n.waiver_payments_in_gbp as new_waiver_payments_in_gbp,
+            coalesce(o.waiver_payments_in_gbp, 0)
+            - coalesce(n.waiver_payments_in_gbp, 0) as diff_waiver_payments_in_gbp,
+            o.checkin_cover_fees_in_gbp as old_checkin_cover_fees_in_gbp,
+            n.checkin_cover_fees_in_gbp as new_checkin_cover_fees_in_gbp,
+            coalesce(o.checkin_cover_fees_in_gbp, 0) - coalesce(
+                n.checkin_cover_fees_in_gbp, 0
+            ) as diff_checkin_cover_fees_in_gbp,
+            o.total_guest_payments_in_gbp as old_total_guest_payments_in_gbp,
+            n.total_guest_payments_in_gbp as new_total_guest_payments_in_gbp,
+            coalesce(o.total_guest_payments_in_gbp, 0) - coalesce(
+                n.total_guest_payments_in_gbp, 0
+            ) as diff_total_guest_payments_in_gbp
+        from old_guest_payments o
+        full outer join
+            new_guest_payments n
+            on o.date = n.date
+            and o.dimension = n.dimension
+            and o.dimension_value = n.dimension_value
+    )
+select *
+from comparison
+where
+    diff_deposit_fees_in_gbp <> 0
+    or diff_waiver_payments_in_gbp <> 0
+    or diff_checkin_cover_fees_in_gbp <> 0
+    or diff_total_guest_payments_in_gbp <> 0
+order by date desc, diff_total_guest_payments_in_gbp desc