UefiPayloadPkg: Create separate Payload Entry for UniversalPayload

UefiPayloadPkg: Create separate Payload Entry for UniversalPayload

This patch create the UniversalPayload Entry based on the UefiPayload
Entry. It implements the logic to find a proper memory range to create the
new Hob and migrate the Hobs from Bootloader.
To make the change history clear, the logic to get the DxeCore will be in
the next patch.

Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Guo Dong <guo.dong@intel.com>
Cc: Benjamin You <benjamin.you@intel.com>
Reviewed-by: Guo Dong <guo.dong@intel.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>