add method to encode path parameters

Author: jenschude

rmf/rmf-java-base/src/main/java/io/vrap/rmf/base/client/ApiMethod.java

@@ -402,4 +402,13 @@ public ApiHttpResponse<byte[]> sendBlocking() {
     public ApiHttpResponse<byte[]> sendBlocking(final Duration timeout) {
         return apiHttpClient.sendBlocking(this, timeout);
     }
+
+    protected static <V> String encodePathParam(V pathParameter) {
+        try {
+            return URLEncoder.encode(pathParameter.toString(), StandardCharsets.UTF_8.toString());
+        }
+        catch (UnsupportedEncodingException e) {
+            throw new EncodingException(e);
+        }
+    }
 }