Support Hyperspectral Imagery

[dukesook]

Refactors the m_planes variable from an std::map to an std::vector to support multiple components per channel.

[farindk]

Thanks, Devon. This is still marked as a draft. I can take over from here if you want.

[dukesook]

Yes, please take it over as this is a very important capability. I apologize for not finishing, but I got pulled into doing another task.

I imagine you'll start from a fresh branch as this PR got messy real quick. There wasn't really an incremental way of implementing.

[farindk]

I imagine you'll start from a fresh branch as this PR got messy real quick. There wasn't really an incremental way of implementing.

What was the main hurdle that made this difficult? On first glance, the approach in your PR looks reasonable and I would have done it in a similar way. From your experience, what should I try to do different?

[dukesook]

I feel good in about the overall direction of my approach. In fact, used this branch to demonstrate converting a 16-bit hyperspectral image to HEIF.

However, there are many opportunities for bugs and I would have preferred to implement it incrementally somehow.

[farindk]

However, there are many opportunities for bugs and I would have preferred to implement it incrementally somehow.

Yes, I understand that. It will require changes and review throughout the code...
Not a change to carry out on the master branch.