adding initial data

src/data/chains_headers.json

@@ -0,0 +1,12 @@
+[
+  { "text": "Building", "value": "building", "groupable": false },
+  { "text": "Number Needed", "value": "number_needed", "groupable": false },
+  {
+    "text": "Electricity Supplied?",
+    "value": "electricity_supplied",
+    "groupable": false
+  },
+  { "text": "Chain", "value": "chain", "groupable": true },
+  { "text": "Final Building?", "value": "final_building", "groupable": false },
+  { "text": "Base Duration", "value": "base_duration", "groupable": false }
+]

src/data/old_chains_headers.json

@@ -0,0 +1,18 @@
+[
+  { "text": "Building", "value": "building", "groupable": false },
+  {
+    "text": "Electricity Supplied?",
+    "value": "electricity_supplied",
+    "groupable": false
+  },
+  { "text": "Feeds Into", "value": "feeds_into", "groupable": false },
+  { "text": "Chain", "value": "chain", "groupable": true },
+  { "text": "Tier", "value": "tier", "groupable": false },
+  { "text": "Final Building?", "value": "final_building", "groupable": false },
+  {
+    "text": "Improved By Electricity?",
+    "value": "improved_by_electricity",
+    "groupable": false
+  },
+  { "text": "Base Duration", "value": "base_duration", "groupable": false },
+]