[cdt-dev] event breakpoints

[Elena Laskavaia <ELaskavaia@xxxxxxx>]

I am ready to commit event breakpoint support.
I made an MI implementation, but it works only for catch and throw 
without arguments in my gdb version.
The only open question left is where to put action in UI, we likely to 
move it next release if we get bug 227394 approved.
The reasonable places:
a) add to context menu where the current Add Watchpoint is or
b) add to View menu, and move Add Watchpoint there too, because as 
common agreement it should not be in context menu