Networking bugfixes, added PixelFormat to resolution selection

Main/src/main/java/com/chameleonvision/util/ShellExec.java

@@ -19,6 +19,16 @@ public class ShellExec {
         this.readError = readError;
     }
 
+    /**
+     * Execute a command in current folder, and wait for process to end
+     * @param command   command ("c:/some/folder/script.bat" or "some/folder/script.sh")
+     * @param args  0..n command line arguments
+     * @return  process exit code
+     */
+    public int execute(String command, String... args) throws IOException {
+        return execute(command, null, true, args);
+    }
+
     /**
      * Execute a command.
      * @param command   command ("c:/some/folder/script.bat" or "some/folder/script.sh")