man1: Add opts-core-print-format.txt
man1: Add opts-core-print-format.txt

Contains the --print-format description. This option is supported by
quvi-scan and quvi-dump.

Signed-off-by: Toni Gundogdu <eac2284b3c43676907b96f08de9d3d52d5df0361@gmail.com>

legatvs/quvi-tool,legatvs/quvi-tool,legatvs/quvi-tool