Package io.github.yskszk63.jnhttpmultipartformdatabodypublisher

package io.github.yskszk63.jnhttpmultipartformdatabodypublisher
multipart/form-data for `java.net.HttpClient`.

Example 

 
 var body = new MultipartFormData()
     .add(StringPart("name", "Hello,")
     .add(StringPart("value", "World!")
     .addFile("f", Path.of("index.html"), "text/html")
     .addFile("cpuinfo", Path.of("/proc/cpuinfo"), "text/html");

 var client = HttpClient.newHttpClient();
 var request = HttpRequest.newBuilder(URI.create("http://localhost:8080/"))
     .header("Content-Type", body.contentType())
     .POST(body)
     .build();
 var response = client.send(request, BodyHandlers.ofLines());
 response.body().forEach(line -> System.out.println(line));