Merged PR 3419: Adds Host Resolutions metrics in new KPIs

# Description

Adds 2 new metrics:
- xero_host_resolution_amount_paid_in_gbp
- xero_host_resolution_payment_count

Effectively it will split the "real" invoicing sources of revenue from "host resolution payments". This was already reading from 2 different Xero models (bank transactions vs. sales).

We have as usual:
- 1 Daily metric model
- 2 MTD/Monthly metric model
- 2 MTD/Monthly agg model (I already changed the name to agg instead of aggregated)
- 1 test to compare the values match the current setup

# 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: #23565

models/intermediate/kpis/int_kpis__metric_mtd_host_resolutions.sql

@@ -0,0 +1,31 @@
+{{
+    config(
+        materialized="view",
+        unique_key=[
+            "end_date",
+            "id_deal",
+            "active_accommodations_per_deal_segmentation",
+        ],
+    )
+}}
+
+select
+    -- Unique Key --
+    d.first_day_month as start_date,
+    d.date as end_date,
+    hr.id_deal,
+    hr.active_accommodations_per_deal_segmentation,
+    -- Dimensions --
+    hr.main_billing_country_iso_3_per_deal,
+    -- Metrics --
+    sum(
+        hr.xero_host_resolution_amount_paid_in_gbp
+    ) as xero_host_resolution_amount_paid_in_gbp,
+    sum(hr.xero_host_resolution_payment_count) as xero_host_resolution_payment_count
+from {{ ref("int_kpis__dimension_dates") }} d
+left join
+    {{ ref("int_kpis__metric_daily_host_resolutions") }} hr
+    on date_trunc('month', hr.date)::date = d.first_day_month
+    and extract(day from hr.date) <= d.day
+where d.is_month_to_date = true and hr.id_deal is not null
+group by 1, 2, 3, 4, 5