BaseTools/FMMT: Add a tool FMMT

FMMT is a tool to enable removal, addition and replacement of
FFS files in FD image binaries.
https://bugzilla.tianocore.org/show_bug.cgi?id=1847

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>

BaseTools/Source/C/FMMT/Rebase.h

@@ -0,0 +1,31 @@
+/** @file  Rebase.h
+
+ Library to rebase PE image.
+
+ Copyright (c)  2019, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _FMMT_REBASE_H
+#define _FMMT_REBASE_H
+
+#include <Common/UefiBaseTypes.h>
+#include <Common/PiFirmwareFile.h>
+
+EFI_STATUS
+RebaseFfs(
+IN OUT  UINT64                 BaseAddress,
+IN      CHAR8                 *FileName,
+IN OUT  EFI_FFS_FILE_HEADER   *FfsFile,
+IN      UINTN                 XipOffset
+);
+
+EFI_STATUS
+GetChildFvFromFfs (
+  IN      UINT64                 BaseAddress,
+  IN      EFI_FFS_FILE_HEADER   *FfsFile,
+  IN      UINTN                 XipOffset
+);
+
+#endif