NSTableColumn patch to have Cocoa-compliant column width

[Quentin Mathé]

Hello,

When backporting Cocoa applications, time to time table views fail to  
show existing columns on GNUstep.
The issue occurs if table columns are added programmatically because - 
width is 100 on Cocoa by default and 0 on GNUstep. So if you add a  
column without setting its width, it's going to invisible with GNUstep  
unlike Cocoa. The min width is 10 on Cocoa and 0 on GNUstep. In this  
case, I think a non-zero value is better because it avoids the  
annoying problem of making a table column disappears when resizing it,  
then having hard time to resize it once its width is equal to zero.
-maxWidth is equal to FLOAT_MAX on Cocoa and 10000 on GNUstep, I  
haven't updated GNUstep default max width in my patch, I see no needs  
to modify it unless we want to exactly mirror Cocoa.

NSTableColumn.m-column-width.patch
Description: Binary data

Cheers,
Quentin.