* Added pugixml as submodule * CVS-34900: updated pugixml to v1.11.4 * Fixed link with pugixml * USe pugixml::static * Try to fix bug * Removed GITHUB_PULL_REQUEST * Replaced OpenVINO_MAIN_SOURCE_DIR -> OpenVINO_SOURCE_DIR * Removed some usages of IE_MAIN_SOURCE_DIR * Use ngraph target directly