COMPMID-687: Winograd refactoring

Moved the headers into src/
Added pimpl pattern

Change-Id: I227f8b47468d8e14875d710aac8de5eb09463e2a
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/111765
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
23 files changed