added update checks and separate internet library

src/main/java/com/falsepattern/lib/internal/Internet.java

@@ -0,0 +1,40 @@
+package com.falsepattern.lib.internal;
+
+import lombok.val;
+import lombok.var;
+
+import java.io.*;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.function.Consumer;
+
+public class Internet {
+    public static void connect(URL URL, Consumer<Exception> onError, Consumer<InputStream> onSuccess) {
+        try {
+            val connection = (HttpURLConnection) URL.openConnection();
+            connection.setConnectTimeout(3500);
+            connection.setReadTimeout(5000);
+            connection.setRequestProperty("User-Agent", "FalsePatternLib Internet Connector");
+            if (connection.getResponseCode() != 200) {
+                onError.accept(new Exception("HTTP response code " + connection.getResponseCode()));
+            } else {
+                onSuccess.accept(connection.getInputStream());
+            }
+            connection.disconnect();
+        } catch (Exception e) {
+            onError.accept(e);
+        }
+    }
+
+
+    public static void transferAndClose(InputStream is, OutputStream target) throws IOException {
+        var bytesRead = 0;
+
+        byte[] smallBuffer = new byte[4096];
+        while ((bytesRead = is.read(smallBuffer)) >= 0) {
+            target.write(smallBuffer, 0, bytesRead);
+        }
+        target.close();
+        is.close();
+    }
+}