BaseTools: Update GenFds to handle file type Ffs Rule

Ffs Rule can specify a file type instead of specific file name. GenFds
should search Binary sections of module INF file and output directory
of the module to find all matched file with the specific file type.
Current GenFds only considers the final output target file. This patch
applies the above rule to match output file with the specific file type.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Yingke Liu <yingke.d.liu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17579 6f19259b-4bc3-4df7-8a09-765794883524