Add Multibase.provided() static method fix #93

Author: filip26

src/main/java/com/apicatalog/multibase/Multibase.java

@@ -78,6 +78,25 @@ public class Multibase {
             Base58::decode,
             Base58::encode);
 
+    protected static final Multibase[] ALL = new Multibase[] {
+            Multibase.BASE_58_BTC,
+            Multibase.BASE_64,
+            Multibase.BASE_64_PAD,
+            Multibase.BASE_64_URL,
+            Multibase.BASE_64_URL_PAD,
+            Multibase.BASE_32,
+            Multibase.BASE_32_UPPER,
+            Multibase.BASE_32_PAD,
+            Multibase.BASE_32_PAD_UPPER,
+            Multibase.BASE_32_HEX,
+            Multibase.BASE_32_HEX_UPPER,
+            Multibase.BASE_32_HEX_PAD,
+            Multibase.BASE_32_HEX_PAD_UPPER,
+            Multibase.BASE_16,
+            Multibase.BASE_16_UPPER,
+            Multibase.BASE_2            
+    };
+        
     protected final String name;
 
     protected final char prefix;
@@ -216,4 +235,8 @@ public boolean equals(Object obj) {
     public String toString() {
         return "Multibase [prefix=" + prefix + ", length=" + length + "]";
     }
+    
+    public static Multibase[] provided() {
+        return ALL;
+    }
 }