[PUSHED] adding calc add-in for option pricing

[Stephan Bergmann]

On 12/04/2012 01:23 PM, Fridrich Strba (via Code Review) wrote:
> Thank you for your patch! :-)  It has been merged to LibreOffice.
>
> If you are interested in details, please visit
>
>      https://gerrit.libreoffice.org/1232
>
> Approvals:
>    Fridrich Strba: Verified; Looks good to me, approved

Seeing this commit, I note that XPricingFunctions has method identifiers 
starting with a lower case letter and containing underscores.  Such 
identifiers are reserved to the UNO implementation.  (See 
<http://www.openoffice.org/udk/common/man/typesystem.html>.  There is a 
-w resp. -we switch for idlc to generate warnings resp. errors in such 
cases, but that is not enabled in our build, because there were some 
historic violations IIRC.)

Tino, can you adapt XPricingFunctions accordingly?

Eike, my vague understaning of Calc Add-Ins is that they indeed need 
both a new UNO service and interface definition, right?

Stephan