tools: add cephfs-table-tool 'take_inos'

tools: add cephfs-table-tool 'take_inos'

For when your InoTable is wrong, and you want to
bluntly mark all the inos up to the highest you've
seen as in use.  You'll waste some inos by marking
in use when they're really not, but you'll guarantee
that the system won't try and re-use an ino that's
really already used by a file.

Since this breaks the mould of the apply_rank_fn
prototype, and I'm using lambdas here now, also go
ahead and convert the other actions to be lambdas
instead of having lots of _reset_foo_table boilerplate
at class scope.

Signed-off-by: John Spray <john.spray@redhat.com>