MdeModulePkg: Add Universal Payload general definition header file

MdeModulePkg: Add Universal Payload general definition header file

Add Universal Payload general definition header file according to
Universal Payload's documentation as below:
https://universalpayload.github.io/documentation/

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Tested-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>