Add 'robotframework-debuglibrary' -package to QA test environment

[msaarine]

Configured the 'robotframework-debuglibrary' -package in to the system.

Usage: One can set a ' break point' into the robot framework code and stop the test into some interesting phase.
When test case stopped a debugging command shell opens and one can give robot framework keywords into that & see the results. This is usable feature when developing new tests/debugging the old ones.

This is not set on by default for all the files but one needs to set 2 lines described below if one want to use the feature.

Usage:

1. Add 'Library DebugLibrary' into the 'robot file' you want to set 'debug break point'

*** Settings ***
...
Library            DebugLibrary

2. Add 'Debug' into the same 'robot-file' to line you want execution to stop

...
Do something
Log to console  Debug set to next line
Debug

And that opens the debug shell

>>>> Enter interactive shell
Only accepted plain text format keyword separated with two or more spaces.
Type "help" for more information.
> 

If you want to fail test after debug you can set something like this here after 'Debug':
FAIL Fail the test after debugging.

3. When you want to leave from debugging shell, just type 'exit'

After one is done with debugging remove the 2 lines 'Library DebugLibrary' & 'Debug' from the file