Refactor world bootstrap and allow empty startup worlds

shared/export/ware-groups-data.json

@@ -0,0 +1,76 @@
+[
+  {
+    "id": "agricultural",
+    "name": "Agricultural Goods",
+    "factoryName": "Agricultural Goods Factory",
+    "icon": "be_upgrade_agricultural",
+    "tier": 5
+  },
+  {
+    "id": "energy",
+    "name": "Energy",
+    "factoryName": "Energy Complex",
+    "icon": "be_upgrade_energy",
+    "tier": 1
+  },
+  {
+    "id": "food",
+    "name": "Food",
+    "factoryName": "Farm",
+    "icon": "be_upgrade_food",
+    "tier": 6
+  },
+  {
+    "id": "gases",
+    "name": "Gases",
+    "factoryName": "Gas Refinery",
+    "icon": "be_upgrade_refined"
+  },
+  {
+    "id": "hightech",
+    "name": "High Tech Goods",
+    "factoryName": "High Tech Factory",
+    "icon": "be_upgrade_hightech",
+    "tier": 3
+  },
+  {
+    "id": "ice",
+    "name": "Ice",
+    "factoryName": "Ice Refinery",
+    "icon": "be_upgrade_water"
+  },
+  {
+    "id": "minerals",
+    "name": "Minerals",
+    "factoryName": "Mineral Refinery",
+    "icon": "be_upgrade_refined"
+  },
+  {
+    "id": "pharmaceutical",
+    "name": "Pharmaceutical Goods",
+    "factoryName": "Pharmaceutical Goods Factory",
+    "icon": "be_upgrade_pharmaceutical",
+    "tier": 7
+  },
+  {
+    "id": "refined",
+    "name": "Refined Goods",
+    "factoryName": "Refined Goods Complex",
+    "icon": "be_upgrade_refined",
+    "tier": 2
+  },
+  {
+    "id": "shiptech",
+    "name": "Ship Technology",
+    "factoryName": "Ship Technology Factory",
+    "icon": "be_upgrade_shiptech",
+    "tier": 4
+  },
+  {
+    "id": "water",
+    "name": "Water",
+    "factoryName": "Water Refinery",
+    "icon": "be_upgrade_water",
+    "tier": 2
+  }
+]