Provide the PKCS7 Tool to support the CertType - EFI_CERT_TYPE_PKCS7_GUID,
then user can use this tool to add EFI_FIRMWARE_IMAGE_AUTHENTICATION
for a binary.
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>