Added a new feature based off of the column editor in notepad++.

It takes an initial (decimal) value and increment value with the desired output format and an optional zero-padding and inserts the values at each selection point, based on how many selections exist.

To do this, it required a dialog that would allow for text input, a checkbox, and radio buttons. This new dialog (extendedDialog) is very much a hack of the already existing dialog.js/html files.

The extended dialog returns an array that consists of the value of the button that exited the dialog, and the values for all text, checkbox, and radio input tags. Currently, the text only accepts 0-9 values.