Moved regions to ONS codes

we had our own references which did't link to the
region dataset references.

bin/patch-region.py

@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+
+import csv
+
+lookups = {
+    "north-east": "E12000001",
+    "north-west": "E12000002",
+    "yorkshire-and-the-humber": "E12000003",
+    "east-midlands": "E12000004",
+    "west-midlands": "E12000005",
+    "east-of-england": "E12000006",
+    "london": "E12000007",
+    "south-east": "E12000008",
+    "south-west": "E12000009",
+
+    "E47000008": "E12000006",
+    "E06000028": "E12000009",
+    "E07000048": "E12000009",
+    "E07000049": "E12000009",
+    "E06000029": "E12000009",
+    "E07000053": "E12000009",
+    "E07000048": "E12000009",
+    "E07000052": "E12000009",
+    "E07000050": "E12000009",
+    "E07000191": "E12000009",
+    "E07000051": "E12000009",
+    "E07000204": "E12000006",
+    "E07000190": "E12000009",
+    "E12000007": "E12000007",
+    "E47000001": "E12000002",
+    "E47000010": "E12000001",
+    "E47000011": "E12000001",
+    "E47000006": "E12000001",
+    "E47000007": "E12000005",
+    "E47000002": "E12000003",
+    "E47000009": "E12000005",
+    "E07000205": "E12000006",
+    "E07000201": "E12000006",
+    "E07000206": "E12000006",
+    "E47000003": "E12000003",
+}
+
+for row in csv.DictReader(open("tmp/lad-region.csv")):
+    lookups[row["LAD23CD"]] = row["RGN23CD"]
+
+
+w = None
+r = csv.DictReader(open("data/local-authority.csv"))
+
+for row in r:
+    if not w:
+        w = csv.DictWriter(open("local-authority.csv", "w", newline=""), fieldnames=r.fieldnames)
+        w.writeheader()
+
+    if row["local-authority-district"] in lookups:
+        row["region"] = lookups[row["local-authority-district"]]
+
+    if row["region"] in lookups:
+        row["region"] = lookups[row["region"]]
+
+    w.writerow(row)
+