ign-cmake integration

[osrf-migration]

Original report (archived issue) by Ian Chen (Bitbucket: Ian Chen, GitHub: iche033).

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WIP in ign-cmake branch

depends on ign-cmake's Components feature

This will change the ign-rendering's file structure from:

ign-rendering:
    - src/
        - ogre
        - optix
    - include/ignition/rendering/
        - ogre
        - optix

to:

ign-rendering:
    - ogre
        - src
        - include/ignition/rendering/ogre
    - optix
        - src
        - include/ignition/rendering/optix
    - src
    - include

[osrf-migration]

Original comment by Ian Chen (Bitbucket: Ian Chen, GitHub: iche033).

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• set assignee_account_id to "557058:10b01d41-a2e9-4a41-a907-e6e2f03b6cd5"
• set assignee to "iche033 (Bitbucket: iche033, GitHub: iche033)"

[osrf-migration]

Original comment by Nate Koenig (Bitbucket: Nathan Koenig).

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• changed state from "new" to "resolved"

Resolved in pull request #51