Implement buildFileTable interface

The buildFileTable interface will be used by the ReadFileIntoMemory
and WriteFileFromMemory commands to get the file table and map the
file handle to the file path.

Change-Id: Ibdc01737d8925ef918c4fbe2919108d96a2807ab
Signed-off-by: Tom Joseph <tomjoseph@in.ibm.com>
5 files changed