additional modifers for scan / formatting functions

[Wolfgang]

CVI provides useful scanning / formatting functions, e.g. Fmt, which in part complement the ANSI functions. This means that some features can achieved using one library, but not (or not conveniently) using the other. Hence I would be happy to see some additional modifiers allowing the Fmt functions to provide some additional capabilities that are available in printf etc

In particular I suggest introducing

- + modifier to always denote the sign '+' or '-' of a number

- e/E to display the exponent 'e' as a small/large character

Thanks

[LuisG]

This is essentially the same suggestion as this one: http://forums.ni.com/t5/LabWindows-CVI-Idea-Exchange/Add-a-modifier-to-the-format-string-for-the-var...