bitbake: hob: add a progress indicator when you select 'view log'

- created a new file named "hobthreads.py", defining a thread
for opening the log file in a subprocess using subprocess module;
in the future I think we will add some other threads here, to
implement some other performance issues
- on "builddetailspage", "packageselectionpage" and "imagedetailspage"
I have changed the manner for opening the log file; it uses the thread
to open the file, and on main thread it creates a dialog to show a
progress bar, which pulses till the file is open
- this was added because when the log file is big, it takes time to
be opened; on the dialog you can use "Cancel" button to terminate the
process initiated to open the file

[YOCTO #2997]
(Bitbake rev: 165362a63f085991b6bab63ab90a0c7b9bf6b784)

Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions