Strait of Malacca map adition (#3599)

## Description:
Adition of Strait of Malacca map

It adds a new map, requested by
Coolson
awildcoolson
Describe the PR.
The map added is a map inspired by the strait of Malacca, it contains
two large landmasses and some islands
## Please complete the following:

- [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

## Please put your Discord username so you can be contacted if a bug or
regression is found:

lerithmercano

---------

Co-authored-by: Ricky G.P. <realtacoco@gmail.com>
Co-authored-by: VariableVince <24507472+VariableVince@users.noreply.github.com>

resources/lang/en.json

@@ -355,7 +355,8 @@
     "milkyway": "Milky Way",
     "mediterranean": "Mediterranean",
     "dyslexdria": "Dyslexdria",
-    "greatlakes": "Great Lakes"
+    "greatlakes": "Great Lakes",
+    "straitofmalacca": "Strait Of Malacca"
   },
   "map_categories": {
     "featured": "Featured",

resources/maps/straitofmalacca/manifest.json

@@ -0,0 +1,65 @@
+{
+  "map": {
+    "height": 1644,
+    "num_land_tiles": 867389,
+    "width": 1832
+  },
+  "map16x": {
+    "height": 411,
+    "num_land_tiles": 51062,
+    "width": 458
+  },
+  "map4x": {
+    "height": 822,
+    "num_land_tiles": 212395,
+    "width": 916
+  },
+  "name": "straitofmalacca",
+  "nations": [
+    {
+      "coordinates": [1268, 730],
+      "flag": "sg",
+      "name": "Singapore"
+    },
+    {
+      "coordinates": [862, 41],
+      "flag": "th",
+      "name": "Thailand"
+    },
+    {
+      "coordinates": [1328, 1284],
+      "flag": "id",
+      "name": "Sumatra"
+    },
+    {
+      "coordinates": [1141, 1090],
+      "flag": "mm",
+      "name": "Burmese Pythons"
+    },
+    {
+      "coordinates": [210, 243],
+      "flag": "id",
+      "name": "Aceh"
+    },
+    {
+      "coordinates": [1011, 736],
+      "flag": "id",
+      "name": "Riau"
+    },
+    {
+      "coordinates": [600, 565],
+      "flag": "id",
+      "name": "Samosir"
+    },
+    {
+      "coordinates": [827, 999],
+      "flag": "id",
+      "name": "Barisan"
+    },
+    {
+      "coordinates": [1053, 333],
+      "flag": "my",
+      "name": "Malaysia"
+    }
+  ]
+}