Adds Gulf of Guinea map (#4590)

## Description:

Adds Gulf of Guinea map to the game:
https://en.wikipedia.org/wiki/Gulf_of_Guinea

Final map of the "pirate maps" for v33 , alongside Irish Sea and Levant.
The map is designed so that all the trade from the mainland, which
covers 2 of the four corners of the "square" (inverse L) passes through
3 small islands, which although small in size they will super-boost
pirates in that zone. The mainland is otherwise fairly lineal, playing
like maps like Conakry.

Also some sub-saharan african representation

The map is decorated with Impassable terrain in its southern border, and
has additional nations for Hvn and Solo games


https://github.com/user-attachments/assets/9c9fd8c0-fefb-46c4-8720-55e90401681e

## 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

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

tri.star1011

resources/countries.json

@@ -122,6 +122,11 @@
     "code": "Anarchist flag",
     "name": "Anarchist Flag"
   },
+  {
+    "code": "Ambazonia",
+    "continent": "Africa",
+    "name": "Ambazonia"
+  },
   {
     "code": "ad",
     "continent": "Europe",
@@ -132,6 +137,11 @@
     "continent": "Africa",
     "name": "Angola"
   },
+  {
+    "code": "gq-an",
+    "continent": "Africa",
+    "name": "Annobon"
+  },
   {
     "code": "aq",
     "continent": "Antarctica",
@@ -356,6 +366,11 @@
     "continent": "Asia",
     "name": "Bhutan"
   },
+  {
+    "code": "Biafra",
+    "continent": "Africa",
+    "name": "Biafra"
+  },
   {
     "code": "bo",
     "continent": "South America",
@@ -1426,11 +1441,21 @@
     "continent": "South America",
     "name": "Kingdom of Araucania and Patagonia"
   },
+  {
+    "code": "Kingdom of Benin",
+    "continent": "Africa",
+    "name": "Kingdom of Benin"
+  },
   {
     "code": "Kingdom Of Cyprus",
     "continent": "Europe",
     "name": "Kingdom of Cyprus"
   },
+  {
+    "code": "Kingdom of Dahomey",
+    "continent": "Africa",
+    "name": "Kingdom of Dahomey"
+  },
   {
     "code": "Kingdom of Egypt",
     "continent": "Africa",
@@ -1461,6 +1486,11 @@
     "continent": "Asia",
     "name": "Kingdom of Judah"
   },
+  {
+    "code": "Kingdom of Kongo",
+    "continent": "Africa",
+    "name": "Kingdom of Kongo"
+  },
   {
     "code": "Kingdom of Syria",
     "continent": "Asia",
@@ -1752,6 +1782,11 @@
     "continent": "Africa",
     "name": "Mali"
   },
+  {
+    "code": "Mali Empire",
+    "continent": "Africa",
+    "name": "Mali Empire"
+  },
   {
     "code": "mt",
     "continent": "Europe",