Add configuration IgnoreFiles for package config files. So users can rely on this to skip license conflict for some generated files. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>