cdb: First working version

Summary:
This patch introduces support to CDB, providing useful backtraces in bug tickets created through DrKonqi on windows.
CDB is normally used on windows to debug MSVC applications, this also will help us to create smaller deployment packages since everything will be MSVC compatible.

This is also based on lldb support.

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Reviewers: davidedmundson, tcanabrava, ngraham

Reviewed By: tcanabrava

Subscribers: ngraham, plasma-devel

Tags: Plasma

Differential Revision: https://phabricator.kde.org/D18859