test/encoding/readable.sh: add non-whole type skip

[aiicore]

With this modification there will be possibility to skip only one/few
object/s of particular type, not whole type as it was before.

Before:

• To skip whole TYPE create file named TYPE in forward_incompat
  directory.

Now:

• To skip whole TYPE create file or empty directory named TYPE in
  forward_incompat directory.
• To skip one/few object/s of TYPE create directory named TYPE in
  forward_incompat and put into symbolic links to objects that
  you wantt to skip.

Signed-off-by: Igor Podoski igor.podoski@ts.fujitsu.com

[aiicore]

@Sage, as we spoke - this is related with ceph/ceph-object-corpus#2 After merge I'll add symlinks in ceph-object-corpus istead of deleting files.

[loic-bot]

SUCCESS: http://jenkins.ceph.dachary.org/job/ceph/10192/

• SUCCESS http://jenkins.ceph.dachary.org/job/ceph/LABELS=centos-7&&x86_64/10192/

[liewegas]

@aiicore This looks right to me! Does it work when you blacklist the problematic coll_t objects?

[aiicore]

@liewegas Yes, on my reduce_strings branch when I add symlinks to deprecated objects in ceph-object-corpus, it skips them and I have 0 fails in the readable.sh test. When this will be merged, I'll repush my changes into object-corpus adding symlinks and then original PR - reduce strings should pass the test :)