Automatic Text Wrapping

Add a define for text wrapping in which dialog that exceeds the boundaries of a text box are automatically newlined.

`\n` characters could be invalidated in order to make any problematic text not immediately newline again after it gets wrapped to a new line (up for debate). If ignored, maybe something like `\r` could work in its place to force it? Or just replace all vanilla cases of `\n` with `\r` and swap roles?

Also add _actual_ text box width as a dialog parameter.