Add Hawaii map (#3187)

## Description:
Add Hawaii as a new regional map. Features 9 nations across the Hawaiian
island chain (Niihau, Kauai, Oahu, Molokai, Lanai, Kahoolawe, Maui,
Kona, Hilo). ~~612K land tiles at 3920x2544~~ 408K land tiles at
3200x2076, terrain generated from real relief data with accurate
volcanic peaks and coastal lowlands. Playlist frequency: 4.

![Hawaii
thumbnail](https://raw.githubusercontent.com/gabigabogabu/OpenFrontIO/feature/hawaii-map/resources/maps/hawaii/thumbnail.webp)

## Checklist
- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

Source:
https://commons.wikimedia.org/wiki/File:USA_Hawaii_relief_location_map.svg
Discord: gabigabogabu

map-generator/assets/maps/hawaii/info.json

@@ -0,0 +1,50 @@
+{
+  "name": "Hawaii",
+  "nations": [
+    {
+      "coordinates": [283, 281],
+      "name": "Niihau",
+      "flag": "us"
+    },
+    {
+      "coordinates": [613, 189],
+      "name": "Kauai",
+      "flag": "us"
+    },
+    {
+      "coordinates": [1424, 525],
+      "name": "Oahu",
+      "flag": "us"
+    },
+    {
+      "coordinates": [1930, 708],
+      "name": "Molokai",
+      "flag": "us"
+    },
+    {
+      "coordinates": [1977, 874],
+      "name": "Lanai",
+      "flag": "us"
+    },
+    {
+      "coordinates": [2145, 1036],
+      "name": "Kahoolawe",
+      "flag": "us"
+    },
+    {
+      "coordinates": [2287, 900],
+      "name": "Maui",
+      "flag": "us"
+    },
+    {
+      "coordinates": [2550, 1550],
+      "name": "Kona",
+      "flag": "us"
+    },
+    {
+      "coordinates": [2900, 1500],
+      "name": "Hilo",
+      "flag": "us"
+    }
+  ]
+}

map-generator/main.go

@@ -69,6 +69,7 @@ var maps = []struct {
 	{Name: "amazonriver"},
 	{Name: "yenisei"},
 	{Name: "tradersdream"},
+	{Name: "hawaii"},
 	{Name: "big_plains", IsTest: true},
 	{Name: "half_land_half_ocean", IsTest: true},
 	{Name: "ocean_and_land", IsTest: true},