Added map Pangaea (#320)

This map was made by mashing up the world map and putting it in the
general shape of the super-continent
[Pangaea](https://en.wikipedia.org/wiki/Pangaea) It's not super accurate
but the continents are generally in the right places and the nations are
more or less the same as on World, placed in the general location where
they would have been. Hope this is good enough to be added into the
game; even if only among custom lobby maps!

resources/maps/Pangaea.json

@@ -0,0 +1,181 @@
+{
+  "name": "Pangaea",
+  "width": 1000,
+  "height": 1000,
+  "nations": [
+    {
+      "coordinates": [389, 800],
+      "name": "South Africa",
+      "strength": 2,
+      "flag": "za"
+    },
+    {
+      "coordinates": [500, 780],
+      "name": "Madagascar",
+      "strength": 1,
+      "flag": "mg"
+    },
+    {
+      "coordinates": [515, 600],
+      "name": "Egypt",
+      "strength": 2,
+      "flag": "eg"
+    },
+    {
+      "coordinates": [180, 420],
+      "name": "United States",
+      "strength": 3,
+      "flag": "us"
+    },
+    {
+      "coordinates": [200, 310],
+      "name": "Canada",
+      "strength": 2,
+      "flag": "ca"
+    },
+    {
+      "coordinates": [150, 460],
+      "name": "Mexico",
+      "strength": 1,
+      "flag": "mx"
+    },
+    {
+      "coordinates": [160, 600],
+      "name": "Colombia",
+      "strength": 1,
+      "flag": "co"
+    },
+    {
+      "coordinates": [280, 800],
+      "name": "Argentina",
+      "strength": 1,
+      "flag": "ar"
+    },
+    {
+      "coordinates": [250, 600],
+      "name": "Brazil",
+      "strength": 1,
+      "flag": "br"
+    },
+    {
+      "coordinates": [470, 890],
+      "name": "Antarctica",
+      "strength": 3,
+      "flag": "aq"
+    },
+    {
+      "coordinates": [400, 340],
+      "name": "Greenland",
+      "strength": 2,
+      "flag": "gl"
+    },
+    {
+      "coordinates": [550, 440],
+      "name": "Spain",
+      "strength": 1,
+      "flag": "es"
+    },
+    {
+      "coordinates": [550, 450],
+      "name": "France",
+      "strength": 2,
+      "flag": "fr"
+    },
+    {
+      "coordinates": [510, 380],
+      "name": "Germany",
+      "strength": 1,
+      "flag": "de"
+    },
+    {
+      "coordinates": [480, 365],
+      "name": "Sweden",
+      "strength": 1,
+      "flag": "se"
+    },
+    {
+      "coordinates": [605, 370],
+      "name": "Turkey",
+      "strength": 1,
+      "flag": "tr"
+    },
+    {
+      "coordinates": [480, 335],
+      "name": "Finland",
+      "strength": 1,
+      "flag": "fi"
+    },
+    {
+      "coordinates": [570, 340],
+      "name": "Ukraine",
+      "strength": 1,
+      "flag": "ua"
+    },
+    {
+      "coordinates": [570, 290],
+      "name": "Russia",
+      "strength": 3,
+      "flag": "ru"
+    },
+    {
+      "coordinates": [490, 150],
+      "name": "Mongolia",
+      "strength": 1,
+      "flag": "mn"
+    },
+    {
+      "coordinates": [550, 70],
+      "name": "China",
+      "strength": 3,
+      "flag": "cn"
+    },
+    {
+      "coordinates": [620, 650],
+      "name": "India",
+      "strength": 2,
+      "flag": "in"
+    },
+    {
+      "coordinates": [545, 200],
+      "name": "Kazakhstan",
+      "strength": 1,
+      "flag": "kz"
+    },
+    {
+      "coordinates": [600, 600],
+      "name": "Saudi Arabia",
+      "strength": 1,
+      "flag": "sa"
+    },
+    {
+      "coordinates": [680, 830],
+      "name": "Australia",
+      "strength": 2,
+      "flag": "au"
+    },
+    {
+      "coordinates": [540, 650],
+      "name": "Ethiopia",
+      "strength": 1,
+      "flag": "et"
+    },
+    {
+      "coordinates": [400, 500],
+      "name": "Chad",
+      "strength": 1,
+      "flag": "td"
+    },
+    {
+      "coordinates": [420, 25],
+      "name": "Japan",
+      "strength": 1,
+      "flag": "jp"
+    },
+    {
+      "coordinates": [480, 410],
+      "name": "United Kingdom",
+      "strength": 2,
+      "flag": "gb"
+    }
+  ]
+}