Add fnl finanace and sales models

jaffle_shop/models/final/_exposures.yml

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+version: 2
+
+exposures:
+  - name: fnl_finance_returns_by_customer
+    label: fnl_finance_returns_by_customer
+    description: Inksacio data app with dashboard for dbt certification
+    type: dashboard
+    url: https://inksacio.eks.octopus.engineering/my_certification_dashboard/
+    owner:
+      email: example.email@octoenergy.com
+    depends_on:
+      - ref('fnl_finance_returns_by_customer')
+  - name: fnl_sales_newcustomers
+    label: fnl_sales_newcustomers
+    description: Inksacio data app with dashboard for dbt certification
+    type: dashboard
+    url: https://inksacio.eks.octopus.engineering/my_certification_dashboard/
+    owner:
+      email: example.email@octoenergy.com
+    depends_on:
+      - ref('fnl_sales_newcustomers')

jaffle_shop/models/final/finance/_models.yml

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+version: 2
+
+models:
+  - name: fnl_finance_returns_by_customer
+    meta:
+      owner: 'example.email@octoenergy.com'
+    description:
+      Table with value of completed returns by customer
+    columns:
+      - name: customer_id
+        tests:
+          - unique
+          - not_null
+      - name: total_returned
+        description: Total value of completed returns made by customer, excluding pending returns

jaffle_shop/models/final/finance/fnl_finance_returns_by_customer.sql

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+SELECT
+    customer_id,
+    SUM(amount) AS total_returned
+FROM {{ ref('wh_orders') }}
+WHERE `status` = 'returned'
+GROUP BY customer_id

jaffle_shop/models/final/sales/_models.yml

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+version: 2
+
+models:
+  - name: fnl_sales_newcustomers
+    meta:
+      owner: 'example.email@octoenergy.com'
+    description:
+      The customer count by month for customers making their first order
+    columns:
+      - name: first_order_month
+        tests:
+          - unique
+          - not_null

jaffle_shop/models/final/sales/fnl_sales_newcustomers.sql

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+SELECT
+    DATE_TRUNC('month', first_order) AS first_order_month,
+    COUNT(DISTINCT customer_id) AS number_first_orders
+FROM {{ ref('wh_customers') }}
+GROUP BY first_order_month

jaffle_shop/seeds/dbt_project_evaluator_exceptions.csv

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+fct_name,column_name,id_to_exclude,comment
+fct_staging_dependent_on_staging,parent,stg_customers_pii,Scrubbing pii permitted in staging layer.