Review Request 32506: Added output stream operators for scheduler Calls and Events.

[Vinod Kone]

-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/32506/
-----------------------------------------------------------

Review request for mesos and Ben Mahler.


Bugs: MESOS-1127
    https://issues.apache.org/jira/browse/MESOS-1127


Repository: mesos


Description
-------

For readable output in logs.


Diffs
-----

  include/mesos/type_utils.hpp cdf5864389a72002b538c263d70bcade2bdffa45 

Diff: https://reviews.apache.org/r/32506/diff/


Testing
-------

make check


Thanks,

Vinod Kone