always use buffered output streams when writing to a file, faster swf xml export by caching the fields

src/com/jpexs/decompiler/flash/gui/LicenseUpdater.java

@@ -18,6 +18,7 @@ package com.jpexs.decompiler.flash.gui;
 
 import com.jpexs.helpers.utf8.Utf8Helper;
 import com.jpexs.helpers.utf8.Utf8PrintWriter;
+import java.io.BufferedOutputStream;
 import java.io.BufferedReader;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
@@ -25,6 +26,7 @@ import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.io.OutputStream;
 import java.io.PrintWriter;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -137,7 +139,7 @@ public class LicenseUpdater {
                     } catch (IOException ex) {
                     }
 
-                    try (FileOutputStream fos = new FileOutputStream(f)) {
+                    try (OutputStream fos = new BufferedOutputStream(new FileOutputStream(f))) {
                         fos.write(baos.toByteArray());
                     } catch (IOException ex) {
                     }