Currently if the input file name already exists, the tool
appends output to existing file. Added overwrite, append,
or no(discard) options to choose from.
Signed-off-by: Bindhiya Kanangot Balakrishnan <Bindhiya.KanangotBalakrishnan@amd.com>
Co-authored-by: Bindhiya Kanangot Balakrishnan <Bindhiya.KanangotBalakrishnan@amd.com>