[lazarus] New component: TMCalculator

[Marco van de Voort]

> Here's today's addition to the component library.
> 
> A non-visual component.  Drop it on a form and call the "execute" method 
> to display a simple 4 function calculator.  Currently there is no way to 
> pull the calculator's result back to the application, simply because my 
> need didn't require that.  I imagine it wouldn't be too hard to do 
> though, I just didn't think about it until after I had already uploaded it.
> 
> Package file is included for easy install.
> 
> http://tony.maro.net/mod.php?mod=downloads&op=getfile&id=18

Tony, just FYI, I still got some code for a formula parser (which can be used to make
a simple HP calculator):

http://www.stack.nl/~marcov/files/symbolic.zip