Use ffmpeg for video exporting (default webm)

Remove monte media lib

src/main/java/eu/crushedpixel/replaymod/utils/StreamPipe.java

@@ -0,0 +1,28 @@
+package eu.crushedpixel.replaymod.utils;
+
+import org.apache.commons.io.IOUtils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class StreamPipe extends Thread {
+    private final InputStream in;
+    private final OutputStream out;
+
+    public StreamPipe(InputStream in, OutputStream out) {
+        super("StreamPipe from " + in + " to " + out);
+        this.in = in;
+        this.out = out;
+    }
+
+    @Override
+    public void run() {
+        try {
+            IOUtils.copy(in, out);
+        } catch (IOException ignored) {
+            // We don't care
+            // Note: Once we use this for something important, we should probably care!
+        }
+    }
+}