Adds a Regex Wizard button to the following dialogs:
Button will also be added to future comment-filter
When the button is selected, the dialog passes the
current regex string (if any) to the Regex Wizard.
Currently, the Regex Wizard implementation only has
the tester. The wizard implementation will be added
The tester includes example regex strings with example
source, that can be used to test regex.
If the OK button is selected, it changes the value of
the calling dialog's regex field.