lsblk: add -O option to show all available columns

Simple command line for gathering information as many as possible is
useful when understanding a system, especially when trouble shooting.

This patch introduces -O option which enables all available columns.

[kzak@redhat.com: - define collisions between options,
                  - define columns when parse argv[]]

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>