Integrate with OpenIGTLinkIF

[christiana]

OpenIGTLinkIF should depend upon OpenIGTLinkIO, and duplicate code be removed.

Wait with this issue until most of the functionality is implemented.

[christiana]

Overview of intended library usage:

[drouin-simon]

That's exactly what I had in mind.

[christiana]

Great. I added this as background for today's discussion. I also added a Powerpoint containing class diagrams for OpenIGTLinkIO to the repo.

[drouin-simon]

Where do I find the PPT?

[christiana]

Sorry, I had my personal repo as origin. Should be here now: https://github.com/IGSIO/OpenIGTLinkIO/tree/master/doc