Change ANG to XCG for CW and SX (#153)

Fixes #150
https://www.six-group.com/dam/download/financial-information/data-center/iso-currrency/amendments/dl-currency-iso-amendment-176.pdf

src/changes/changes.xml

@@ -9,6 +9,10 @@
 
     <!-- types are add, fix, remove, update -->
     <release version="2.0.1" date="SNAPSHOT" description="Version 2.0.1">
+      <action dev="jodastephen" type="add" issue="150">
+        Change currency for CW and SX from ANG to XCG. (ISO 4217 Amendment 176).
+        This change is effective from 31st March 2025.
+      </action>
       <action dev="jodastephen" type="add" issue="147">
         Include proguard rule.
       </action>
@@ -21,7 +25,7 @@
     </release>
     <release version="1.0.5" date="2024-08-25" description="Version 1.0.5">
       <action dev="jodastephen" type="update">
-        Change currency for ZW from ZWL to ZWG. (ISO 4217 Amendment 177)
+        Change currency for ZW from ZWL to ZWG. (ISO 4217 Amendment 177).
       </action>
       <action dev="jodastephen" type="update">
         Return 'XXX' as the currency symbol for 'XXX' on Java 21.

src/main/resources/org/joda/money/CountryData.csv

@@ -53,7 +53,7 @@ CO,COP # Special: COU
 CR,CRC
 CU,CUP # Special: CUC
 CV,CVE
-CW,ANG
+CW,XCG
 CX,AUD
 CY,EUR
 CZ,CZK
@@ -211,7 +211,7 @@ SR,SRD
 SS,SSP
 ST,STN
 SV,SVC
-SX,ANG
+SX,XCG
 SY,SYP
 SZ,SZL
 TC,USD

src/main/resources/org/joda/money/CurrencyData.csv

@@ -7,7 +7,7 @@ AED,784,2
 AFN,971,2
 ALL,8,2
 AMD,51,2
-ANG,532,2
+ANG,532,2 # Old, now XCG
 AOA,973,2
 ARS,32,2
 ATS,40,2 # Old, now EUR
@@ -193,6 +193,7 @@ XBB,956,-1
 XBC,957,-1
 XBD,958,-1
 XCD,951,2
+XCG,532,2
 XDR,960,-1
 XEU,954,-1 # Old, now EUR
 XFU,-1,-1 # Old, now EUR

src/test/java/org/joda/money/TestCurrencyUnit.java

@@ -441,6 +441,12 @@ void test_factory_ofCountry_String_unknownCurrency() {
             .withMessage("No currency found for country 'gb'");
     }
 
+    @Test
+    void test_cw_sx_xcg() {
+      assertThat(CurrencyUnit.ofCountry("CW").getCode()).isEqualTo("XCG");
+      assertThat(CurrencyUnit.ofCountry("SX").getCode()).isEqualTo("XCG");
+    }
+
     //-----------------------------------------------------------------------
     // Serialisation
     //-----------------------------------------------------------------------