REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3267
Adds two new helper functions.
Currently, a function exists in Tpm2CommandLib to copy a digest list
to a buffer. A function to perform the inverse operation - copying
from a buffer to a digest list is added.
A function is also added to compute the total digest size for a given
hash algorithm mask.
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>