Fix crash when stdout is not a TTY on Linux

Without this change, the following happened when piping/redirecting the
output of MCE.py:
```
Error: MC Extractor v1.102.0 crashed, please report the following:

Traceback (most recent call last):
  File "/root/MCExtractor/MCE.py", line 1093, in <module>
    elif sys_os.startswith('linux') or sys_os == 'darwin' or sys_os.find('bsd') != -1 : sys.stdout.write('\x1b]2;' + mce_title + '\x07')
                                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/colorama/ansitowin32.py", line 47, in write
    self.__convertor.write(text)
  File "/usr/lib/python3/dist-packages/colorama/ansitowin32.py", line 177, in write
    self.write_and_convert(text)
  File "/usr/lib/python3/dist-packages/colorama/ansitowin32.py", line 199, in write_and_convert
    text = self.convert_osc(text)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/colorama/ansitowin32.py", line 272, in convert_osc
    winterm.set_title(params[1])
    ^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'set_title'
```

This looks like a colorama bug, see
tartley/colorama#209.

The workaround is to skip the title change if stdout is not a TTY.

Author: sbraz

MCE.py

@@ -1090,7 +1090,7 @@ def mass_scan(f_path) :
 
 # Set console/shell window title
 if sys_os == 'win32' : ctypes.windll.kernel32.SetConsoleTitleW(mce_title)
-elif sys_os.startswith('linux') or sys_os == 'darwin' or sys_os.find('bsd') != -1 : sys.stdout.write('\x1b]2;' + mce_title + '\x07')
+elif (sys_os.startswith('linux') or sys_os == 'darwin' or sys_os.find('bsd') != -1) and sys.stdout.isatty() : sys.stdout.write('\x1b]2;' + mce_title + '\x07')
 
 if not param.skip_intro :
     mce_hdr(mce_title)