BaseTools: store more complete output files in binary cache

BaseTools: store more complete output files in binary cache

Binary cache use the OutputFile method to return the module
built output files needed to store in cache, but current
OutputFile implementation doesn't return complete output files.
Enhance the OutputFile method to return more complete output files.

Signed-off-by: Steven Shi <steven.shi@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Bob Feng <bob.c.feng@intel.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>