Add button to options to generate .editorconfig text for current options

[VolkmarR]

Currently it is a bit tricky to create an .editorconfig with xsharp specific settings.

It would be helpful to have a button somewhere in the X# Options, that generates and shows the .editorconfig text for the current settings. This way, I could create the desired configuration in the options and then generate the text, that I have to put in the .editorconfig.

The generated text could look something like this.

[*.prg]
# Tab - insert spaces (space)/keep tabs (tabs)
indent_style = space
# tab - tab size
tab_width=4
# tab - indent size
indent_size=4
...