Add IgnoreLocal reader, writer QoS setting

[eboasson]

This adds Cyclone's "ignore local" QoS setting to the C++ API. Fixes #139.

Something strikes me as odd, and that's that adding a very simple QoS policy to what is no more than a C++ wrapper around the C API touches 10 files/+275/-12 lines. The original introduction of the policy in Cyclone (that is, API and implementation) touched 5 files/+103 lines (https://github.com/eclipse-cyclonedds/cyclonedds/commit/4778d6c5dfb6853f07f81ac59ae0d65afc5e3c93).

Maybe I did something wrong, I don't know. @e-hndrks, perhaps you can have a look?

[trittsv]

@eboasson the branch has conflicts, may you can merge the current master into the branch?

[eboasson]

@trittsv done.