#1306 add readable toString() methods to some objects

... to make it easier to read these values in logs

src/main/java/net/datafaker/providers/base/AbstractProvider.java

@@ -42,4 +42,9 @@ protected <G> List<G> loadGenerators(Class<G> generatorClass) {
             .map(ServiceLoader.Provider::get)
             .toList();
     }
+
+    @Override
+    public String toString() {
+        return "%s(%s)@%s".formatted(getClass().getSimpleName(), faker, Integer.toHexString(hashCode()));
+    }
 }

src/main/java/net/datafaker/providers/base/BaseFaker.java

@@ -400,4 +400,9 @@ public final <B extends ProviderRegistration> B getFaker() {
     public static Method getMethod(AbstractProvider<?> ap, String methodName) {
         return ap == null ? null : ObjectMethods.getMethodByName(ap, methodName);
     }
+
+    @Override
+    public String toString() {
+        return getClass().getSimpleName() + "@" + Integer.toHexString(hashCode());
+    }
 }

src/main/java/net/datafaker/service/FakeValuesService.java

@@ -1197,6 +1197,12 @@ private record MethodAndCoercedArgs(Method method, Object[] coerced) {
         private Object invoke(Object on) throws InvocationTargetException, IllegalAccessException {
             return method.invoke(on, coerced);
         }
+
+        @Override
+        public String toString() {
+            return "%s[method=%s.%s(), coerced=%s]".formatted(getClass().getSimpleName(),
+                method.getDeclaringClass().getSimpleName(), method.getName(), Arrays.toString(coerced));
+        }
     }
 
     private record RegExpContext(String exp, ProviderRegistration root, FakerContext context) {

src/main/java/net/datafaker/service/RandomService.java

@@ -120,4 +120,9 @@ public int hashCode() {
         if (random == SHARED_RANDOM) return 1;
         return random != null ? random.hashCode() : 0;
     }
+
+    @Override
+    public String toString() {
+        return getClass().getSimpleName() + "@" + random;
+    }
 }