BaseTools: Extend FMP to support FV statement and FD statement

BaseTools: Extend FMP to support FV statement and FD statement

This patch extend the <FmpFileData> to support <FvStatements> and
<FdStatenents>, just like the normal [Capsule] section format.
In order to fix the bug https://bugzilla.tianocore.org/show_bug.cgi?id=132

Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>