BaseTools/AutoGen: auto generate MM template APIs and dependencies.

BaseTools/AutoGen: auto generate MM template APIs and dependencies.

This patch adds changes to auto generate MM_CORE_STANDALONE and
MM_STANDALONE Entry Point templates.
Also, it adds changes to help auto generate dependency expressions for
MM_STANDALONE modules.

PI Specification v1.5 specifies Management Mode System Table (MMST)
which is  a collection of common services for managing
MMRAM allocation and providing basic I/O services. MMST is similar to
the UEFI System Table. (Currently, EFI_SMM_SYSTEM_TABLE2 defines
Management Mode System Table)

Some of auto generated MM_CORE_STANDALONE and MM_STANDALONE template
APIs use MMST as parameter.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>