patch for debugging plugin

[DoMeN]

Hi,
I have commited to BerliOS patch No. 001932 used if GDB is set to use HW breakpoints as default(b == hb).

This patch adds ability to debugging plugin to see HW breakpoints as SW breakpoints if GDB is set to use HW breakpoints instead of SW breakpoints (set default_HB 1 command used to do this in my GDB - this owerrides b and break commands to set hb and hbreak).

It doesn't change or break any of the existing code so could it please be added to head release. If it will be added please inform me.

r. Domen