Security: Add HashLibTdx

Security: Add HashLibTdx

RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3853

This library provides hash service by registered hash handler in Td
guest. Currently only SHA384 is supported. After that the hash value is
extended to Td RTMR registers which is similar to TPM PCRs.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>