MdeModulePkg/FvSimpleFileSystem: Add a new module to provide access to executable files in FVs.

This module implements Simple FileSystem protocol over Firmware Volume (FV).
EFI Modules included into a FV can be listed and launched from the EFI Shell or any other EFI applications.

Contributed-under: TianoCore Contribution Agreement 1.0

Signed-off-by: Brendan Jackman <brendan.jackman@arm.com>
Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>

git-svn-id: svn://svn.code.sf.net/p/edk2/code/trunk/edk2/MdeModulePkg@16547 6f19259b-4bc3-4df7-8a09-765794883524