DynamicTablesPkg: AML stream interface

DynamicTablesPkg: AML stream interface

Dynamic AML involves parsing/packing of AML opcode and
data into AML byte streams. The AML stream interface
provides safe buffer management as well as supports
forward and reverse streams. It provides functions to
create, read, write, clone and compare AML streams.

Co-authored-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Alexei Fedorov <Alexei.Fedorov@arm.com>