base: GetTID responder implementation

A pldm terminus is defined as the point of communication termination
for PLDM messages and the PLDM functions associated with those messages.

The Terminus ID(TID) is a value that identifies a PLDM terminus.

This commit assignes 1 to the BMC as the TID.

Signed-off-by: John Wang <wangzqbj@inspur.com>
Change-Id: I7adb0e1274f326fe6cf148771f230f530c9a567c