Improve unicode support

[MHendricks]

Summary

I've found a couple of problem areas when using unicode.

1. Pasting print("🎉") into the console ends up pasting print("?"). Though I can still use Win + . to insert emojis(same error).
2. If the workbox has unicode text it will cause errors when trying to save to disk. This causes preferences to loose the contents of that file and possibly others.

Traceback (most recent call last):
  File "C:\blur\dev\PrEditor\preditor\gui\loggerwindow.py", line 203, in <lambda>
    lambda: self.recordPrefs(manual=True)
  File "C:\blur\dev\PrEditor\preditor\gui\loggerwindow.py", line 705, in recordPrefs
    workbox_prefs = self.uiWorkboxTAB.save_prefs()
  File "C:\blur\dev\PrEditor\preditor\gui\group_tab_widget\__init__.py", line 295, in save_prefs
    tab_widget.widget(j).__save_prefs__(
  File "C:\blur\dev\PrEditor\preditor\gui\workbox_mixin.py", line 268, in __save_prefs__
    self.__write_file__(
  File "C:\blur\dev\PrEditor\preditor\gui\workboxwidget.py", line 194, in __write_file__
    fle.write(cls.__unix_end_lines__(txt))
  File "C:\Users\hendew\AppData\Local\Programs\Python\Python39\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 29-30: character maps to <undefined>