Add initial draft of a Roadmap page

[djhoese]

A couple months ago a couple of us have been having "design meetings" to work towards a Pyresample 2.0 design. As part of these meetings we conducted a user survey and got a lot of good responses. After a lot of back and forth we ended up with some important changes and what we think are good interfaces. In order to get the word out there and get more feedback on this I've put together a Roadmap document for the website that people (maintainers and users) can refer to when talking about Pyresample 2.0.

Let me know what you think. I'm not sure how much of this I just assumed from our meetings and how much is what we actually agreed upon. You won't hurt my feelings if you completely disagree. That's the point of this, let's discuss.

[codecov]

Codecov Report

Merging #373 (fe247db) into main (e49adbd) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #373   +/-   ##
=======================================
  Coverage   93.52%   93.52%           
=======================================
  Files          50       50           
  Lines       10406    10406           
=======================================
  Hits         9732     9732           
  Misses        674      674           

Flag	Coverage Δ
unittests	93.52% <ø> (ø)

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[coveralls]

Coverage remained the same at 93.512% when pulling fe247db on djhoese:doc-roadmap into e49adbd on pytroll:main.

[mraspaud]

Thanks for putting this together! It looks really good. I just have a small comment about the last paragraph.

[mraspaud]

The rtd build is failing, is that expected?

[djhoese]

No, but I think this was fixed in @adybbroe's PR. I may have made this branch without updating to include his changes (I had this roadmap sitting locally for a while).

Edit: I'll update in a bit after a meeting.

[djhoese]

Or I'll do it now 😉

[djhoese]

Coveralls upload failed it seems so I'm restarting the jobs.

[sfinkens]

Great job, thank you very much! Just one little typo.

[djhoese]

I'm realizing I should add something about xarray and geoxarray. I'll try to do that later today.

[djhoese]

You two approved this before going on vacation. I need to merge this so that I can link to it from a progress report due next week. I can fix any issues you have with it later. Thanks for understanding.

[sfinkens]

Now it's even better :)