Add sectoring system to shp file

sector_system_physical_boundaries.json

@@ -0,0 +1,67 @@
+[
+    {
+        "sector_system_name": "Exmouth Physical Boundaries",
+        "sector_system_description": "Six sector system split at physical boundaries.",
+        "sector_mapping": {
+            "S1": [
+                "Z21",
+                "Z24",
+                "Z25",
+                "Z26",
+                "Z27",
+                "Z28",
+                "Z29",
+                "Z30",
+                "Z31",
+                "Z32",
+                "Z33",
+                "Z39"
+            ],
+            "S2": [
+                "Z19",
+                "Z20",
+                "Z34",
+                "Z35",
+                "Z36",
+                "Z37",
+                "Z38"
+            ],
+            "S3": [
+                "Z7",
+                "Z11",
+                "Z12",
+                "Z13",
+                "Z14",
+                "Z15",
+                "Z16",
+                "Z22",
+                "Z23"
+            ],
+            "S4": [
+                "Z8",
+                "Z9",
+                "Z10",
+                "Z17",
+                "Z18"
+            ],
+            "S5": [
+                "Z1",
+                "Z2",
+                "Z3",
+                "Z6"
+            ],
+            "S6": [
+                "Z4",
+                "Z5"
+            ]
+        },
+        "sector_names": {
+            "S1": "Exmouth Centre",
+            "S2": "The Maer",
+            "S3": "Withycombe",
+            "S4": "Hulham",
+            "S5": "Lympstone and the North",
+            "S6": "Budleigh"
+        }
+    }
+]